A temporary solution but one nonetheless:
open illustrator
close appearence pallete from window menu
close illustrator
open illustrator
the pathfinder tool should work now without crashing
if you close illustrator you'll need to repeat steps
still doesnt cover other random crashes including the knife crash.
open illustrator
close appearence pallete from window menu
close illustrator
open illustrator
the pathfinder tool should work now without crashing
if you close illustrator you'll need to repeat steps
still doesnt cover other random crashes including the knife crash.