I noticed a lot of villagers getting stuck under the roofs of Snowy village structures when trying to pathfind into the structures.
It seems they thing they can walk up on stairs that are in front of the doors to the structures but they get stuck because of the hanging roof. (see screenshot)
They just stand there indefinetly jumping up/down fast since they cant really jump in the 2 block space they are standing in.

I have seen similar behaviour in the last couple of versions but with villagers standing under leave blocks, trying to walk up a block and getting stuck there indefitnetly.