I can confirm for 1.20 pre-release 7 that rabbits get stuck on blocks, Actually I found out that they cannot even jump up any blocks. I made a 1 block deep pit and the rabbit got stuck in it for the remainder of the play session.
it isnt occasionally like the dupe like, it is period. they 100% get stuck in a 1 block deep pit.
it would be kind of hard to demonstrate in screenshots.
I am playing on a vanilla survival single player world and have this issue, along side this issue, I have the conduit not showing as Full Power even though It had killed mobs.
The particles are right where the mob died.
I am playing on Java version 1.20.2