Tiles empty for long animations?
so i was making a kinda long animation. Like more than 100 frames. Had to take a break and re-opened it to go on later, then i just noticed i can not copy anything to the new tiles - at like, half of the animation the copied picture just disappears, leaving an empty tile to copy. It doesn't seem to be a specific point because its fading right in the middle of another tile.
Closed it and re-opened, issue's still there.
I was wondering if anyone else experienced this? And if so, did you find out how to fix it?