It happened several times that I was editing some sprite in my game and after many modifications, PISKEL simply got a black screen, not being able to save the changes made. leaving the only alternative of closing the PISKEL window and losing everything that was done.
Got that after a lot of of modifications and pressing Ctrl+Z to undo something. Overall I already lost some hours, because it’s in my blood to hit that combination, even knowing that it will end up like this.
It seems to be a known issue already. So far I just read: use another tool…
But imho thats not the right way. Would be nice if it could be fixed