10m old suddenly on a bottle strike at daycare

10m old exclusively formula fed baby just this week started refusing her bottles at daycare. I know that she’ll be weaning off formula soon but she has no problem drinking it at home, only at daycare and only just now. She loves her daycare ladies and hasn’t refused bottles in the past.

Daycare bottles are usually 10am and 2pm with lunch in between, she’s eating breakfast lunch and dinner no problem. Yesterday when we got her home from daycare I gave her a bottle and she downed it immediately like she was really thirsty. She another 6oz before bed with no issues. We’ve been patiently waiting for her top teeth to poke through but if the issue was teething I feel like she wouldn’t be eating so well at home? I’m stumped.

Has anyone else been through this? Could it be she just wants us to feed her and it’s a phase that will pass?