The Bug:
Curse of binding doesn't work in some slots.
Since the said slots work like armor slots, it would be expected that the curse of binding enchantment functioned correctly.
Affected Instances:
Any mob equipped with or holding an item with curse of binding can still swap the item for another item.
Steps to Reproduce:
Summon a tamed horse wearing a saddle enchanted with curse of binding by using the command provided below.
/summon minecraft:horse ~ ~ ~ {Tame:1b,equipment:{saddle:{components:{"minecraft:enchantments":{"minecraft:binding_curse":1}},count:1,id:"minecraft:saddle"}}}Switch to survival mode if not already.
Mount the horse and attempt to unequip its saddle.
Observed Behavior:
Curse of binding doesn't work in some slots.
Expected Behavior:
Curse of binding would work in all slots.
Linked issues
is duplicated by 2
relates to 4
MC-269779
The blast protection enchantment is ineffective when applied to horse armor
Resolved
MC-107510
Curse of Binding doesn't affect mobs wearing items.
Resolved
MC-80243
Saddles don't apply attribute modifiers when worn by entities
Resolved
MC-268934
The depth strider and respiration enchantments no longer function on horse armor
Resolved
Comments 15
Part of the issue has been fixed. The curse of binding enchantment now correctly works in the horse armor slot and llama carpet slot.
I’m resolving this ticket as fixed in 25w03a. It is well-established that the curse of binding enchantment does not work for things that are held. If strictly necessary, a new ticket regarding that exact behavior can be created. As for the main problems (horse armor slot, saddle slots, etc.), these issues are fixed.
@unknown "MC-107510: Removing the bits about llama and horse equipment, those can't be enchanted regularly."
They can still be enchanted like that using creative/commands, as such I'd think that these slots should work as one would expect.