Trying to work on Mac with TBS files created on PC

I have created many TBS files at work on a PC using TBS v2. I recently bought a Mac for use at home and installed TBS v2.5 for the Mac. I am having a lot of trouble working on the old files at home. I can’t save. When I open the files there are drawings missing, etc.

I have recreated my global library from work on my local at home hoping this would solve it to no avail.

Any help will be very appreciated.