The bug:
When a player sneaks on these types of entities, the camera and model do not shift downward and go into position. The game still registers the player as crouching since it cannot fall of the edges of the entity's hitbox.
EDIT: Boats are fixed, but shulkers are still not fixed.
Linked issues
is duplicated by 16
relates to 1
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Comments 15
Confirmed for 19w40a. Also, if the camera is in crouching mode, you enter a shulker, and release shift, the camera will stay in crouching move until you move down from it.
I don't seem to be able to reproduce in 1.16-pre7; see this video.
Please do not mark unreleased versions as affected.
You don't have access to them yet.