Crashes EVERY time color pallet is open and I attempt to switch to a different material - for any material pallet change within

Hi - I have been troubleshooting this issue today also - I realize it is file based an not all my SU files crash on this pallet issue, only one file is doing it, the rest are all good. The one that is crashing was originally built by a collaborator on a PC version, using a different rendering engine plugin on his PC Sketchup. Not only is that file crashing but it also has bracketed viewing on the left and right sides are dark areas where it is cropped for screen view. I asked my friend to remove the bracketing from his view and resave the file in a legacy version and resend it to me. Maybe it was built on the pC in SU 24 and my Mac version (23.1) errors ? Im guessing until I get the file back - will let you know if that is it. Good Luck!!