My village is near full capacity with the villager/bed ratio. From what I know, one villager was turned into a zombie and a baby villager was born at close times. After being cured, the "restored" villager would not go to its bed despite the baby being killed and another bed being placed. Instead, this villager goes to the same area every night and refuses to go anywhere else in the night despite there being available bed in close proximity. This has happened with other villagers, however, I do not know how to recreate it.

https://drive.google.com/file/d/1f_ZKZDu9R9cqxl989zSNlEittllK5QqY/view?usp=sharing