We found the solution:
After hours of googleing and trying everything possible (removing ram, repairing permissions, updating every driver out there, reinstalling FCS) we found that some users have the same problem as we do.
Final cut crashes A LOT on loading thumbnails.
The solution for them seemed to be to remove their AJA cards…
We don’t have an AJA card but a BlackMagic HD DeckLink Extreme. Upon removal, our issue was resolved.
Hope this is of use to anyone else.
We sent a mail to BlackMagic to find out if they have a solution to this, so that we can use our reference monitors again….
I’ll let you know what they say.