Bug Fixes / Updates - Revit 2021 - BIM there. Done that.

2021.1.9 Hotfix

Issues Resolved

Ceiling
- Improved stability when creating a ceiling in a ceiling plan.
MEP Fabrication
- Fixed an issue to assign unique GUIDs to part that have stored GUIDs to prevent duplicates.
- Added support in the audit feature for repairing blank or duplicate GUIDs.
- Fixed an issue to improve the persistence of the element GUIDs when changing the element type using the type selector.
Revit Cloud Model (workshared)
- Improved Personal Accelerator’s cleanup behavior when it is tracking many models.

2021.1.8 Hotfix

Issues Resolved

Dynamo for Revit
- Fixed an issue that Dynamo for Revit would not start due to Greg.dll and GregRevitAuth.dlls not being updated.
File Open/Save
- Improved stability when saving the file.
Graphics
- Addressed potential security vulnerabilities in Raster Image link/import.
Import/Export
- Updated components used for importing .adsk files to address security vulnerabilities.
- Addressed potential vulnerabilities in Raster Image link/import.
- Addressed potential security vulnerabilities in PSKernel component.
Import/Export/Link SAT/SKP
- Addressed potential security vulnerabilities related to import of SketchUp files.
Revit Cloud Model
- Improved stability when the user loads/reloads a linked model from the cloud while the model has been deleted.
Revit Cloud Model (workshared)
- Fixed an issue that Revit could potentially crash when checking out a large set of elements while the local document has been out of date.
- Fixed an issue that Synchronize with Central could potentially fail if the previous Synchronize with Central from the same session was completed a certain time ago.
Revit Home
- Fixed the translation of “Publish Status” in Japanese language.
Shared Views
- Addressed potential security vulnerabilities
Units
- Ensured Revit loads schemas from disk first and only loads missing or new schemas from projects, preventing Revit instability or a corrupt data state.
View
- Fixed an issue where annotations such as spot elevation, dimension, or tag disappear or become empty when the Revit model is closed and reopened.

2021.1.7 Hotfix

Issues Resolved

Color Fill
- Improved stability due to an invalid piping flow parameter value in the color fill calculation.
Countrification
- Fixed the Simplified Chinese translation of the “Calculation in Progress” error message.
Fabrication – MEP
- Improved stability when editing parts containing a single connector.
Import/Export
- Addressed potential security vulnerabilities related to import of SketchUp files.
- Updated components used for importing .adsk files to address security vulnerabilities.
Line
- Improved stability when using the Tangent End Arc tool, with the Radius checkbox checked, and second-clicking in an invalid location.
MEP Systems
- Fixed an issue that caused a mechanical system to be borrowed by a user who made modifications to the network, but not the system itself.
Revit Cloud Models
- Fixed an issue where Revit Cloud Worksharing models could not be opened due to missing metadata.
Sketching
- Improved stability when placing, by face, a component whose plan representation contains an arc that is very short and/or has a very large radius.
Upgrade
- Fixed an MEP fitting centerline logic issue that failed to upgrade a project.
User Interface
- Addressed vulnerabilities in components used for data interoperability and materials management.

2021.1.6 Hotfix

Issues Resolved

Annotation – Text
- Improved stability when loading families into the Revit model.
Assembly
- Improved stability when creating assemblies in Revit.
Link Topography
- Resolved an issue where linked topography could not be reloaded when using the Desktop Connector version 15.0.0.1540 or later.
Linked RVT Files
- Improved performance during some sync with central operations, for host models that contain rooms, tags attached to link geometry, and Revit links that contain unloaded nested attached links.
- Improved performance during reload latest for models containing Revit links that include unloaded nested attached links.
MEP P&ID Modeler
- Resolved an issue where the new pipe segment in P&ID Browser failed to get created in a worksharing environment when there is an update from P&ID drawing.
Materials
- Improved performance of AppearanceAssetElement editing API.
Options Dialog
- Resolved an issue when editing Option>Check Spelling>Additional Dictionary does not work under Windows 11 environment.
Revit Cloud Model (workshared)
- Resolved an issue when RevitAccelerator accumulates subscriptions to PubNub channels and thus causes performance degradation at PubNub service.
- Fixed an issue in which ownerships on newly-added elements were not relinquished during synchronize with central.
Security
- Addressed potential vulnerabilities throughout Revit.
View – Filters
- Resolved an issue when 2D elements are missing in the Family Editor.
View Templates
- Improved stability when restoring temporary view properties.

2021.1.5 Hotfix

Issues Resolved

Revit Cloud Worksharing
- Fixed the issue that the call on Revit API CheckoutElements from the handler of DocumentOpened Event could fail when the target is a Cloud Worksharing model.
Security
- Addressed potential vulnerabilities throughout Revit.

2021.1.4 Hotfix

Issues Resolved

API
- Fixed an issue that Revit Macro didn’t work after upgrading to Revit 2021.1.3.
IFC
- Added support for exporting linked Revit files hosted in BIM360 to IFC when the option to export linked files as separate IFC files is enabled.
MEP Fabrication
- Fixed an issue when checking out worksets with a large number of elements to delete in a Cloud Worksharing model could not proceed due to the elements being mapped to invalid worksets.
Security
- Addressed potential vulnerabilities in PDF link/import.

2021.1.3 Hotfix

Issues Resolved

DirectShape Elements
- Fixed an issue that could produce very large journal files during upgrade of models with many DirectShapes.
- Improved upgrade of some families created in Revit 2018 or earlier to preserve some geometry created via import operations or API.
Duct/Pipe Display
- Fixed an issue that incorrectly filtered out detail lines and masking regions when they conflicted with model lines at a specific detail level.
Electrical Circuits
- Fixed an issue that the load can’t be propagated properly through a single phase transformer.
Electrical Panel Schedule
- Fixed an issue where the Phase doesn’t display correctly when assigning a spare in single phase panel.
Energy Model
- Fixed an issue that caused interior spaces to be excluded from an energy analysis.
Export DWG/DXF
- Fixed an issue where small objects would not export correctly to DWG at large drawing scales.
Licensing
- Fixed an issue where user license expired unexpectedly causing Revit to fall into a 10 minute grace period, after which Revit is automatically terminated.
Materials
- Fixed an issue where the Material browser would load thumbnails unnecessarily.
- Fixed an issue that material texture not found after moving textures to a new assigned render path folder.
MEP Fabrication
- Fixed an issue that caused costing data to be lost after exporting parts to a .maj file.
- Fixed an issue with kerf values resetting to 0 after importing a job file.
Open/Save
- Fixed data corruption message displayed in error when opening a model.
Properties Dialog
- Improved performance when using the type selector.
Reinforcement
- Fixed an issue where the concrete cover of a model in place element cut by another element is reset after finish editing without any changes.
Revit Cloud Model (workshared)
- Fixed issue that mirroring fails if a new workset has been added to the model but has not been saved to the cloud.
- Fixed an issue where the Activity Indicator would show that the model is not being actively synchronized if the synchronize time is longer than 5 minutes.
Steel Connections
- Fixed an issue that caused steel connections to become invalid after performing a Roombook addin calculation.
- Improved performance for worksharing synchronization actions when the central model has link models attached that contain or have contained steel fabrication elements such as steel connections.
Units
- Corrected symbols for Russian translated units.

2021.1.2 Hotfix

Issues Resolved

Annotation – Tags
- Improved the stability when selecting material tags in 3D, section, or elevation views.
DirectShape Elements
- Improved Massing instances imported from FormIt to dimension properly.
Energy – Analytical Model
- Fixed an issue that caused systems analysis to fail if an analytical surface is created without a valid analytical space reference.
Export DWG/DXF
- Improved the stability when exporting to DWG in a location synced to a cloud storage service.
Fabrication – MEP
- Fixed an issue with elevation tags that would display ? when removing the leader from the tag.
- Fixed an issue where thousand of combination was causing Revit to freeze during a reload configuration.
Family
- Fixed the issue that families cannot be loaded if they are accompanied by a type catalog where types are separated by blank lines.
File Open/Save
- Improved stability for model open when a registry item is lost.
Help
- Fixed the issue that F1 keys do not display the correct help page in browser.
MEP Electrical Cable Tray and Conduit
- Fixed an issue that caused cable tray fittings to not display in a plan view with annotation scale turned on.
MEP Electrical Circuits
- Improved stability when creating a circuit in system browser after delete a circuit in canvas.
MEP Mechanical Other
- Fixed an issue that caused a hosted element to move when its workset changed.
MEP P&ID Modeler
- Allow user to associate a BIM 360 Plant Project on BIM 360 Docs via P&ID modeler when the model was originally associated with a Plant Project on A360 Teams.
Revit Cloud Worksharing
- Fixed an issue so that sync with central would not be blocked by the long file path of a linked file in a cloud model or a Revit Server model.
- Fixed an issue that a cloud model with name length close to limit 255 causes failure of navigating to the corresponding folder on Import/Link RVT dialog.
- Fixed an issue when the Worksets are not editable task dialog is shown, when there are 2 users, both of whom created new worksets and edited their respective worksets, and then performed a SWC respectively, causing a Workset clash due to new worksets being downloaded into their locals during SWC.

2021.1.1 Hotfix

Issues Resolved

Align
- Improved the stability when aligning grid lines.
Alignments
- Fixed the issue that Revit will hang when importing bridge model including the alignment from InfraWorks to Revit.
Content Browser
- Improved stability with family load when using Load Autodesk Family.
Duct/Pipe Display
- Fixed an issue that caused a gap between a pipe and fitting when using single line display with “Use Annot. Scale for Single Line Fittings” enabled in Mechanical Settings.
Energy Model
- Fixed an issue that caused an energy analytical model to contain analytical surfaces with missing geometry.
Help
- Fixed the issue that help link is broken when customers press F1 on the Revit plug-in.
Parameters
- Fixed an issue that was caused longer than expected delays when switching views.
Shared View
- Fixed an issue that a text is truncated on Shared View Dialog.
Tags
- Resolved an issue so that values from a calculated instance parameter in the Tag family is available in a linked object.
Units
- Updated Russian translations
View
- Fixed the issue so that wall tags won’t randomly disappear.

2021.1 Update

Enhancements

API
- Deprecated two properties DocumentSavingAsEventArgs.IsSavingAsMasterFile and DocumentSavingAsEventArgs.IsSavingAsMasterFile and added two properties DocumentSavingAsEventArgs.IsSavingAsCentralFile and DocumentSavedAsEventArgs.IsSavingAsCentralFile.
- In the API, replaced the Enum value ConnectorType.MasterSurface with a new value ConnectorType.MainSurface (no rebuild of existing applications referencing the replaced value is required).
Alignments
- Added support for alignments to Revit transferred from a future version of InfraWorks as a part of the InfraWorks bridge model. Alignments support alignment station annotations to be added to an imported alignment individually or as “sets” to meet documentation requirements.
Dynamo for Revit
- Updated Dynamo for Revit version to 2.6 in Revit 2021.1.
- Provided new Dynamo for Revit nodes for Path of Travel function including getting/adding/setting and removing waypoints, calculate the shortest way to multiples destinations.
- Added 90 new Dynamo Revit nodes related to Revit platform functions such as selection, documentation, view, etc.
Electrical Panel Schedule
- Added support so users can modify elements in a circuit using the properties palette while in a panel schedule view by selecting the desired element(s) in the System Browser.
Export DGN
- Renamed the property used for selecting the working units during DGN export through the API to WorkingUnits.
Import/Export/Link SAT/SKP
- Added support for importing SketchUp 2020 files.
MEP Analytical Systems
- Improved System-Zones by reporting the Level Offset and making it editable in the Properties palette.
MEP Miscellaneous
- Added support for P&ID Modeler to access Plant 3D Collaboration projects on a Europe data center.
Reinforcement
- Added the ability to identify the rebar host for any selected rebar set, area or path reinforcement.
Shared Coordinates
- Provided informational messages when attempting to acquire coordinates from a link.
Shared View
- Provided an easy way to share 3D views in Revit.
Units
- Added 50 new units of measurement, spanning across all disciplines. Please see What’s New for a complete list. link.
User Interface
- Refined disciplines and job roles in the user profile.
- Updated the following dialogs to be resizable: Parameter Properties (Family Editor), Manage Project Units, Manage Project Parameters, Project Parameter Properties, New Shared Parameter, Shared Parameter Properties, Edit Tooltip.
- Refined a link message in the Default Family Template File Invalid dialog.
- Added the option to switch view tabs by history order (starting from last active/working view) using CTRL+(SHIFT)+TAB.

Issues Resolved

API
- Fixed an issue when reading the UnitType property of an ExtensibleStorage.Field built with UnitType.UT_Custom. Updated the ExtensibleStorageManager SDK sample project to accept the included sample XML file (aSimpleSchema_adsk___78630.xml).
- Fixed an issue where
- Realistic views would export black through the API only.
Analytical Model
- Improved stability when selecting an Analytical Node from an Analytical Beam that has 0 length.
Background Processes
- Fixed an issue that caused model sizes to increase significantly due to unfinished background calculations.
- Improved stability of background processing.
- Ensured colorfills calculate correctly after Syncing with Central in a Workshared model.
Copy-Cut-Paste
- Fixed an issue so that users can copy and paste elements.
- Fixed an issue so that the imported DWG file appearance won’t be overridden after duplicating a view with view template being applied.
Curtain System
- Fixed an issue when users are working with the curtain walls within a group.
Design Option
- Fixed an issue when face-based components were deleted on make design option primary.
- Improved the naming of duplicate design options so they order more naturally.
Dimensions
- Fixed an issue so that dimension text would show correct value.
- Improved stability when splitting a wall that is dimensioned.
- Improved stability of switching views when expanding spot elevation types in the Properties palette.
- Improved stability when opening a file with dimensions.
Duct
- Fixed an issue that caused instability when placing duct elements created using direct shapes.
- Improved duct tags that use the Overall Size or Free Size parameters by displaying the dimension that is parallel to the view first.
Duct/Pipe Display
- Fixed an issue that prevented offset tags from reporting a value for design duct and pipe fittings.
Dynamo Player
- Fixed an issue where Dynamo Player selection nodes could not be used when switching between open Revit models.
Dynamo for Revit
- Fixed the Dynamo Revit node: Roof.ByOutlineExtrusionTypeAndLevel issue so it works as expected.
- Fixed the issue so that “All Element of Type” Dynamo node would work as expected.
- Removed the redundant error message when Dynamo Revit users run the Dynamo script containing the global parameters.
- Fixed the incorrect Dynamo Revit sample file location in the description.
Electrical Wiring
- Fixed a worksharing issue that caused wires to be automatically borrowed when opening a local file.
Energy Model
- Fixed an issue that caused instability when using the Location dialog while in Preview Solar Study mode.
Export DWG/DXF
- Fixed an issue where lines would be missing when exporting certain slightly curved elements to DWG.
Family
- Fixed the text issue so that text type catalog would show correctly with Cyrillic letters.
File Open/Save
- Resolved issue where family file size would increase after being saved in 2021 format.
- Added ‘ignoreEESchemaConflict’ option in File Open API ‘OpenOptions’.
Floor
- Improved stability when editing a floor profile.
Graphics
- Fixed an issue where decals displayed offset from their actual position in Realistic views when placed on the face of a loaded family instance.
Help
- Fixed an issue so that Revit would show the correct help page when pressing F1 on an API-added button with an API-assigned local help file.
IFC
- Re-enabled the use of the “Export user-defined property set” option when exporting IFC files.
Import/Export Image
- Fixed an issue where mapped drives were case sensitive in the relative path of an inserted PDF or Raster Image.
Link Topography
- Fixed an issue where Link Topography didn’t work when Windows System Locale was set to a non-English option in which a period was used for digital grouping rather than comma.
- Improved the performance of Link Topography when the Civil 3D published surface is extremely large.
- Fixed an issue in the Link Topography dialog where the button sizes did not fit the localized language.
- Fixed an issue where shared coordinates were updated incorrectly after reloading a moved linked topography with large coordinates.
MEP Analytical Systems
- Fixed a conversion error for the Airflow per area parameter of analytical spaces.
- Improved Systems Analysis by not assigning temperature set points to unconditioned analytical spaces.
- Fixed a Systems Analysis error by blocking the exclamation point character from being used for gbXML names.
MEP Connectors
- Fixed an issue that allowed a pinned family to be moved by dragging a MEP connector grip.
MEP Fabrication
- Fixed an issue with the “Display On Views” setting which failed to update status changes when reloading configuration.
- Updated tooltip information on the Fabrication AddOn features.
- Fixed an issue that prevented barcodes and QR codes from displaying in fabrication reports.
- Fixed an issue with dialog window icons which were getting overwritten after installing the Fabrication Addon.
- Fixed an issue that resulted in disconnections when using the Change Size feature on branch runs in tee and tap-off scenarios.
MEP Miscellaneous
- Fixed an issue where Transfer Project Standards is not working for P&ID project settings.
- Improved the performance of turning graphic disconnect warnings on or off in an MEP model.
Materials
- Improved stability when working with RPC elements.
Mechanical Systems
- Fixed an issue that prevented a tag from reporting a value for a vertical pipe or duct.
Pipe
- Fixed an issue that caused instability in Revit when modifying a duct or pipe system that was in a bad state.
- Fixed an issue that caused a pipe rise symbol to be hidden by a pipe above that is not displayed due to phase filtering.
- Fixed an issue where pipes were removed as a result of another pipe type deletion.
Plan Regions
- Fixed the issue so that the wall display won’t be changed after the plan region is deleted.
Platform
- Improved stability on exit when Gflags are enabled.
Precast
- Corrected an issue that would prevent the Precast tab to be loaded when the operating system is in Turkish.
Pressure Loss Calculations
- Improved piping systems by removing unnecessary warnings.
Print
- Fixed an issue where whole viewports print black if multiple realistic views on the same sheet have a different anti-aliasing setting.
- Fixed an issue where views set to Realistic that were not directly opened in the session would print wireframe when printing multiple selected views and sheets.
- Fixed an issue with text in multiple dwg links with different colors all printing the same color in vector mode.
Project Browser
- Improved stability when renaming views (and using the delete key) in the Project Browser.
Reinforcement
- Fixed an issue where overridden hook lengths become negative when changing the rebar shape.
Revit Cloud Model (workshared)
- Fixed an issue where a user had 2 editing requests for the same element from 2 different users and granted one of them. the second request would not be properly updated in the user’s view.
- Fixed an issue where cloud models could incorrectly be marked as transmitted.
- Manage Links dialog or Insert Link dialog are now able to show all the models visible to a user even if there are models with the same model identifier.
- Fixed an issue where workset creators unexpectedly lose ownership after a sync with central.
Shared Coordinates
- Fixed an issue in the Coordination Model dialog where the pull-down list size of Positioning options did not fit in the localized language.
Startup/Shutdown
- Improved stability when launching Revit.
Text
- Fixed an issue where vertical text leaders would incorrectly move during placement.
Units
- Changed parsing for inputs such as “1 M” to interpret the unit as meters instead of nautical miles, restoring behavior from releases prior to Revit 2021.
- Added units of measurement to additional types to improve consistency across disciplines. Please see What’s New for a complete list. link.
- Resolved an issue with accessing unit schema data.
- Updated the API documentation to clarify changes in units.
- Resolved data race on startup that could cause sporadic instability.
- Fixed DB Strings for INCHES_OF_WATER and INCHES_OF_WATER_PER_100FT.
- Added an enumeration value corresponding to UnitType::Custom at ParameterType 99.
- Resolved an issue with accessing unit schema data.
User Interface
- Corrected a misspelling in Customize Workspace dialog.
- Improved stability when a floating view is docking to the main window.
View Templates
- Fixed the issue so that view scale name will be correctly overridden by the view template after a customer view scale is applied with “Display Name” checked.
Wall
- Improved stability when creating slanted stacked walls with large angle offsets.
- Fixed the issue so that nested elements such as reveal or sweep in a curtain wall displayed correctly when applying the Displace Element command.
Worksharing
- Fixed an issue where elements added in a local save and then synced were sometimes impossible to check out.
- Fixed an issue that caused pipe or duct straights to overlap after syncing when two users made modifications to the same run containing multiple straights in a line.