I don't if this belongs in storyboard but I have a problem with my map have two different backgrounds and it doesn't get rid of it no matter how hard I try. I tried going into the osu data file than removing the bt folder that didnt work. I tried making my own bt image and that didn't work so if there's anything I'm missing please help

Doesn't sound like a storyboard related issue, but we'll see. Anyway,

Could you link the map in question and post a screenshot of your problem?
This way we can check the map for problems and determine if it's just an issue on your end, then advise on how to resolve the problem.