Young BP Won't Eat

[PythonChris88]

I'm sure this topic has been brought up countless times and I've done plenty of research already, but I still can't figure out the issue. Here's the story:

Now 4.5 month old BP purchased in early November. Breeder reported good feeding, though sometimes would not take from tongs but would eat the rat if left in her enclosure. She had been on f/t pups prior to purchase and about 150g. Took her home, set up in a VE-6 rack with a hide box, water dish, 88F basking side, 78F cool side. One week after getting her, she ate a f/t pup that I gently introduced to the entrance of her hide. One week later, she wouldn't take the rat from the tongs so I left it and about 20 mins later when I checked, she had eaten it.

Then she suddenly stopped eating. I attempted to feed her about 5 different times ~4 days apart with no luck. No conditions changed and my other 6 snakes have been eating vigorously in the same set-up. After 3 weeks of refusal, I became concerned and got her a live pup. I heard the pup still moving after 15 mins, but another 15 mins later, it was gone. Now after 2 more weeks, she is still refusing f/t. She often roams her enclosure at night, but has no interest at all in the rats. I make sure the temperature of the rat is sufficiently high but it makes no difference.

I really don't want to go live again, but given her age, it makes me uncomfortable to let her go more than 3 weeks without a meal. Any thoughts why she could have developed such a sudden distaste for f/t? My technique is no different from the two successful feeds right after getting her, so I'm stumped. Thanks in advance and Happy New Year!