try a smaller hide.....also try putting dark construction paper around the sides and back....are you feeding pinkie mice or rats...try switching it from mice to rat vice versa......bp's are known to be picky eaters the challenge is finding your animals quirk.
I have some that will eat live some eat FT some eat FK..some eat asf,rats,etc....some wont eat certain colors i dont understand why but i like trying to try different things,
I had a rescue 50% het pied that as given to me as a 6 month non eater......i tried ft mice..nope.......ft rats.....nope,but gave him a live rat pupand he took it right away had him after 1 month and he ate......now eats anything i out infront of him
also have a baby ball that wot eat that i had for a month wont eat either....he gets assist fed and now i just touch the nose with the ft and he takes.......
just be creative and try different things and try reading other peoples post on non eaters and try wat they did also......dont panic and be patient!