in the wild, i believe the retic breeding season is Sept-Nov - so total time would be 3 months tho i know a herpetologist in Singapore that works with them heavily in the wild and can confirm for sure tomorrow
with this being said it definitely seems like a mystery - if it is stress related perhaps you could consider offering an additional hide or extra foliage décor - if she is being picky because of the prey item itself and you’ve already tried a variety of rodents what you could also try is quails or some other bird type prey - if it is indeed because of breeding season and it’s already been 3 months, perhaps she’ll snap out of it soon - if all of these fail and it keeps refusing food then perhaps take them to the vet for a check up
the only thing else i can possibly think of is prey presentation - if you always present it using tongs and putting it up to their face maybe try just leaving something in front of their den - i had to do this initially with my African rock python (after a couple months of that they’re now slamming mice like nobody’s business so perhaps you could do this)
at any rate, hope you get this sorted soon my friend! will post tomorrow about the exact breeding season times if i’m wrong