Are you direct linking or exporting to datasmith… We have gone away from within Revit in 2025. Exporting seems to be more stable. Found this out the hard way when the option became available.
Exporting and importing, with or without tarrifs, works OK. AutoDesk is delving into the problem and will post a patch to fix the problem after it is determined if it is an Epic bug or a REVIT one. Syncing works OK after the first export and import via DataSmith.