Fixed an issue that caused cable tray fittings to not display in a plan view with annotation scale turned on.

Fixed an issue that incorrectly filtered out detail lines and masking regions when they conflicted with model lines at a specific detail level.

Improved upgrade of some families created in Revit 2018 or earlier to preserve some geometry created via import operations or API.

Fixed an issue that could produce very large journal files during upgrade of models with many DirectShapes.

Personal Accelerator for Revit – version 21.0.11.0.Autodesk Cloud Models for Revit 2020 – version 20.2.40.65.Software embedded in the update executable: Uninstalling this update after being applied to a Revit 2021.1 installation may cause the Revit version displayed in Windows>Add/Remove Programs to be blank. Uninstalling this update after being applied to a Revit 2021.1 installation may require the original installation media to complete without error. Revit 2021 updates can be uninstalled to revert Autodesk Revit 2021 to its pre-update state. If the BuildNumber is 21.1.11.27, then the installation used the Revit 2021.1.1 full product installer and the required RVT.msi is available here: link If the BuildNumber is 21.1.1.109, then the installation used the Revit 2021.1 full product installer and the required RVT.msi is available here: link If the BuildNumber is 21.0.0.383, then the installation used the initial Revit 2021 full product installer and the required RVT.msi is available here: link In the right column, make note of the BuildNumber value. Browse to and select the HKEY_LOCAL_MACHINESOFTWAREAutodeskUPI2 registry key in the left column.ģ. The following is the simplest way to identify which full product installer was used to install Revit 2021 on a workstation:Ģ. There are several unique Revit 2021 full product installers which have been released and each includes a unique version of the RVT.msi file. If you are prompted for to specify the RVT.msi version and do not have access to the original installation files you may download the RVT.msi as follows. In some scenarios the original RVT.msi may be required to install the hotfix. A reboot of the system should resolve the errors.

After applying the hotfix, Generative Design command may cause a “RestDynamoCore.exe – This application could not be started” errors.

What revit wants