1. When you try to insert an already existing image, osu crashes immidiately. Why couldn't we have an information box instead of it?
2. Does Sprite Library hold no more than 15 sprites? I have to manually insert sprites again if I can't set them up properly in one time.
3. Sometimes osu doesn't display the image inserted, like this screenshot describes. You can only exit the song and re-enter it, then it will show up.