Starting from Inventor 2021.1 and Vault 2021.1 it's now possible to handle the local Revit references from Inventor. If the Revit reference is in the cloud, for example BIM 360 or some other Autodesk platform, it's not supported.
Now you can:
- Check in the Revit files within the Inventor assemblies.
- Add the Revit file type using the Open from Vault and Place from Vault dialogs.