I have encountered the same issue with sheep (only tested with them) in 19w09a and previous snapshots as well. I have a simple flat field with a 1.5 block high wall and they jump on their own without following a player.
Bunkii
I have encountered the same issue with sheep (only tested with them) in 19w09a and previous snapshots as well. I have a simple flat field with a 1.5 block high wall and they jump on their own without following a player.