The ender dragon's sub-hitboxes (the green ones) are positioned at 0, 0, 0 in any dimension until the dragon starts its first AI tick. For dragons with NoAI NBT set, the dragon will never have a hitbox. For naturally occurring dragons, this will result in the dragon lacking any sub-hitboxes for 1 tick.
Steps to Reproduce:
Method 1:
Tick freeze the game:
/tick freezeSummon or spawn an ender dragon
Step 1 tick
Method 2:
Run the command:
/summon ender_dragon ~ ~ ~ \{NoAI:1b}Expected Behavior:
The dragon would have all necessary hitboxes and sub-hitboxes when spawned.
Observed Behaviour:
The dragon has only has it's outer (white) hitbox, but that hitbox cannot be interacted with or attacked.
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migrated
migrated
No
migrated
this also affects 22w24a
but in 22w24a, the smaller hitboxes appear to be at 0 0 0
[media]
Avoma
Can confirm in 1.19.1.
Avoma
Can confirm in 1.19.2.
migrated
Affects 24w12a
[Mod] Jingy
MC-278174 has outlined how this issue is broader than originally reported. I have updated the report accordingly to reflect this new discovery.
I suggest changing the title to "Ender dragon with NoAI only has the main hitbox", as the current title is a bit misleading.