Archicad 29 Bluebeam Connection Error

[DeWitt_Archs]

Our office is looking to use the integrated Bluebeam Connection but when we try to import redmarks from a session we get this error:

I've tried a solo file, teamwork file, simplifying down to a single redline ect, but nothing seems to work. Uploading documents to a session works but I can't import the redlines 

Operating system used: Windows 25H2