First feed refusal, late shed?

[dkspftw]

So I guess I've had this easy so far and now I'm dealing with the real BP keeping.

My female pied (approx 350+g) just refused her first rat. She's been crazy aggressively slamming f/t rodents since I first got her, just over two months ago, but last night she just ignored the one I put in. It was still there in the morning.

She's (I think?) way overdue for a shed, as she still hasn't yet since I've had her. I thought her colors looked a bit faded when I last checked on her two days ago, but I didn't notice milky eyes or anything yet.

About two weeks ago I totally cleaned/rearranged her cage and moved her, and she ate once after that but it seemed more reluctant. (I sort of had to prod her with the rat during the zombie dance.) She's barely left her hide since the cage move, which is fairly unusual for her.

It's about 79.2 in her hide and ~90 at the hotspot, but she's barely been out of the hide since the move. Approx 65% humidity, aspen bedding, AP T8 cage.

Questions:

1) Do I have to sterilize the area the rat was sitting last night? It was pretty much in her hide, so I'll have to move her to do so, and I don't wanna stress her more.

2) She seems to prefer this one hide over the others I've given her, and I've always sort of seen her hang out far away from the heat source in her enclosure. But she behaved normally before, and it was the same for a couple of months now. Maybe she's cold? Should I move her favorite hide more towards the middle rather than the cold side?

3) How long should I wait to attempt feeding again? I'd really rather not spoil her with live unless it's an emergency, so I'd rather not do that unless I have to. Do I?

4) How concerned should I be about this late shed? I'm under the impression the shed indicators are a bit more unusual on a piebald, so what should I be looking for? Is it likely the cause of her food refusal? My other BP eats like a pro regardless of her shed cycle.

I haven't handled her since the cage move two weeks ago cause I wanted to prioritize getting her feeding regularly. So I haven't noticed anything unusual about her from my basic observation, but haven't gotten a real close look.

Thanks!