And sometimes there is nothing wrong and the snake just doesn't want to eat but will defend it's territory.
I have a 7 month old het albino female that kills quite often and doesn't eat it.
She has killed and not eaten 12 times since Aug. but is still a healthy 350 grams.
She is growing slower than my others but just refuses to eat more than one meal every 7 to 10 days.
Same rack as my other snakes, same temps, nothing different except she refuses to be pushed into eating.
So I accept that fact and feed her before others just in case she doesn't swallow her kill so I can offer it to my garbage pail spider male who will eat anything anyway and almost anytime, lol.