I've used dropbox for storage for 10+ years with AutoCAD. Recently on AutoCAD 2025 when opening older files from Dropbox (not even that old, say something I worked on in 2023) the program just freezes and won't open. The files are .dwg. I can force close AutoCAD, attempt to reopen that old file and it will freeze again, then I can force close again, and on the third time it will open the file. It's very odd. Any tips are greatly appreciated.