Even with resettling, it's a good nap:/
I know they say feeding is better to be after bath, but I know I never did that with DS.
I think you guys are slowly coming into 4mo sleep regression unfortunately.
If adding some A time didnt work, I think I would just try to be persistent with timings and kind of wait it out. If she is healthy and has no other discomfort.
Sorry, I probably didn't offer any constructed advice.
Maybe someone else will help more.