Hi @russbebbo
Yes, this has been reported by several users recently, and it is usually tied to a conflict between the Datasmith exporter plugin version, graphics card drivers, or specific geometry in the Revit model.
Before diving into deep troubleshooting, please try the following steps to resolve the crashing issue:
1. Update the Twinmotion Datasmith Exporter Plugin
Often, a Revit version mismatch occurs if the Datasmith plugin is outdated. Uninstall your current Datasmith Exporter via the Windows Control Panel, then download and install the latest version compatible with Revit 2027 from the official Epic Games / Twinmotion website.
2. Purge and Clean the Revit Model
Corrupt geometry or overloaded families can trigger a crash during synchronization. Try this:
- Go to Manage tab > Purge Unused (do this a few times until nothing is left).
- Run an Audit when opening your Revit project file.
- Check for any complex or corrupted 3D RPC families/trees that might be causing the exporter to fail.
3. Direct Link vs. Datasmith File Export
If the "Sync" (Direct Link) button keeps crashing Revit, try using the file export method as a workaround:
- In Revit, use the Datasmith tab to Export the model as a .udatasmith file.
- Open Twinmotion and Import that .udatasmith file. This method is often more stable than the live sync.
4. Update GPU Drivers & Clear Cache
- Ensure your Graphics Card drivers (NVIDIA/AMD) are fully updated to the latest Studio/Game Ready driver.
- Clear the Twinmotion Direct Link cache folder located in your AppData directory if necessary.
Quick question: Does this crash happen on all projects (even a simple blank template with one wall), or is it isolated to this specific project model? Let us know so we can narrow it down!
Best regards,
Product Expert Community Support
