Horses can be pushed into a block on dismount. I've recorded how to reproduce the bug and uploaded it to youtube.
https://www.youtube.com/watch?v=6lsBDwz-hAI
edit: new video with hitboxes: https://www.youtube.com/watch?v=TUeio69qO6s
What's happening in the video:
I spawn a horse and push it out of the wall
I mount and dismount the horse
The horse is pushed into the wall, takes damage and dies
This can also happen in bigger holes, but it's harder to reproduce.
I don't think this is a duplicate of MC-96583 because there is no elevation involved (if it is in fact a duplicate, the bug is clearly not fixed)
Some people reported this behavior before (eg: MC-97243), but the trail always leads to the above mentioned elevation bug.
Comments


https://www.youtube.com/watch?v=TUeio69qO6s
Didn't even need to make the hole smaller 😉
Please retest, but this time with hitboxes enabled (F3+B).