So I have an update.... BA broody has been in the crate for several hours so I decided to not wait until morning and peeked in on her. She isn't sitting on the eggs. She's roosting on the side of the nesting box. To make matters worse, she appears to have crushed a fully developed egg. None of it was eaten (unlike the others) but just smashed like she fell on it.
I've had enough. I removed her from the crate. She went back to her old box and sat in it... Even with no eggs.
She had 9 eggs under her. I had candled these eggs a week ago and were sure they were alive. When I looked at them tonight, almost all but 1 looked undeveloped. I put the 1 that was furthest along under the Buff Orpington broody. Of course that didn't save the last chick when I did that but I didn't trust the BA broody to do her job so it's better than nothing. She has been sitting longer this time so maybe it will work out.
I do have 2 other hens that are playing at being broody (a blue Andalusian and an Ameraucana) but they only started in the past few days and I'm not sure if they will be quitters or not.
I'm just SO FRUSTRATED with how many chicks have died because of this broody. And even when I tried to move her to a crate, didn't help.