The bug
Skeleton and zombie horses can't be leashed.
How to reproduce
Get a lead in your inventory
Do
/summon zombie_horse
or/summon skeleton_horse
Right click on the horse with the lead
Code analysis
Code analysis by @unknown can be found in this comment.
Linked issues
is cloned by 1
is duplicated by 11
relates to 2
Comments 54
Confirmed for:
15w42a The game just ignores the fact that the player is holding a lead. Right clicking a skeleton horse causes you to ride it, holding shift and right clicking it opens its inventory.
Same as Marcono1234 "15w42a The game just ignores the fact that the player is holding a lead. Right clicking a skeleton horse causes you to ride it, holding shift and right clicking it opens its inventory."
C'mon, 5 skeneton horses spawned next to my base and I can't do anything with them.
This is a deliberate design decision. Undead horses are OK with being ridden (with some reluctance), but they don't accept being owned, and definitely won't accept being leashed.
Undead horses are not supported.