What would cause a loading error (red loading bar/ red loading percentage) to occur when adding in an animation or frames to an animation (i.e. my game loads fine, then I add in an animation and import frames to it and now there is a loading error and it won't load. I should note I can add as many blank frames as possible but adding in any other sort of image in the frames caused a loading error).
It seems to happen when I add in more than 1 non blank frame in certain animations, though since I can't reproduce it consistently, I am hesitant about posting it to a bug report section. Also now it loads but just gives these error messages