Broody mom rejecting chicks?

Our white Cochin has been sitting on eggs for 2 weeks and we separated her to a quiet brooder area for the last 3 days. We slipped chicks under her last night and checked an hour later and she had moved away from them and they were cold and cheeping loudly, and one was trapped in a corner. :(

We moved them to this brooder after that so the chicks wouldn’t get stuck and had a heat plate in case she didn’t help them. She never seemed to take to them or cluck to them, and she’s actively pecked them away from her, including away from the water dish.

We separated her to the regular coop and run, and we’re going to raise the chicks since it doesn’t seem like she’s bonded to them.

I know hens peck somewhat to keep them under her but she doesn’t seem bonded. What do others think??

Btw she’s back on an empty nest in the coop already…