Now it's been a while I encountered this problem but now it really p*ss*s me off!
I am color-correcting an assembled panorama and when I want to save it I get a "could not execute request due to program error". I knew from experience with this problem I could select the entire image, copy and paste it into a new file but this required merging the layers.
Merging the layers of course means I can't calibrate the individual images any further on a later date...

Anyone knows a trick, some general advice, things to try out?

Thanks for looking.