Hey guys,
i seem to have found the problem, even though i uninstalled sketchup it was leaving files behind (probably with some corrupted files) so i deleted them and to be sure i installed sketchup on another disk… now it seems to be working again and also a lot smoother for some reason…
a clean reinstall was the solution after all apparently… i did not try to install SU podium so maybe that was thing that corrupted the files…
Anyway thanks for the help guys!