How's your husbandry? Do you have temps in the 82-84 range for the cool side and 92-94 range for the warm? Measured with a digital thermometer? What about two small dark hides, with just enough room for your snake? Husbandry issue are usually the culprit when you come across a refusal to eat, but with yours being so new it could be other things as well.

My first bp was offered f/t in a separate tub, when I first got her. She did not eat well. This isn't uncommon, as many bps are very shy and prefer to ambush their prey. Try again next week, but offer the food inside the enclosure. Are you offering the same prey that was previously taken by this bp?

Another thing to consider with a new bp, is to have it checked for internal parasites. Any vet can check a fecal sample for nasty little critters. But having a good herp vet located is always good too.