Lightroom Classic V12.01 resynchronises whole catalogue every it is opened

Hey,

unfortunaley my Lightroom Classic (I use Version 12.01 on macOS Monterey Version 12.6.1. atm) has been resynchronising all photographs off the catalogue everytime I have opened it in the past week. Unfortunately the synched pictues in Lightroom Classic don't contain any of the edits I have done on mobile devices (in my case on the iPad; v. 8.0.1) during the last week. I have checked catalogue, everything seems fine concerning the files.

Does anyone know what I could do to resolve this issue? 

Thanks in advance  🙂