If an Allay attempts to picks up a stack that causes its item count to exceed 64, it will leave a ghost item on the ground that has no visual hitbox with the remaining amount of items it could not pick up due to only taking part of the stack enough to fill its 64 item limit. This can easily cause players to lose items due to not realizing they are still in the world.
To reproduce:
Summon or spawn an Allay
Give it a stone item
Drop a stack of 63 stone items and let it pick it up
Drop a stack of 64 stone items and let it pick it up
The second stack will visually disappear and the Allay visually picks up the entire stack of more than 1 item, but in reality, there is a ghost item entity left over
Verify with
/data get entity @e[type=item,sort=nearest,limit=1]The Allay will give you 64 items back, and if you walk over the invisible item, you will get 63 items
Expected behavior:
The ghost item should remain visible
The Allay should have only visually picked up 1 item instead of the entire stack
Linked issues
Attachments
Comments 5
Is the Won't Fix due to the inability to recreate the 127 item stack in survival? The second scenario is however easily reproduceable even in normal gameplay, and resulting in an invisible item could easily lead the player to lose their items. Having items go invisible without explanation in normal gameplay like this seems like a very game-breaking issue that could result in a lot of confusion. Should I divide this bug and focus on the survival reproduceable issue?
I have adjusted this report to properly focus on the survival reproduceable issue. The issue in the end stems from the behavior of picking up partial stacks, which the original description was focusing on all possible issues that come with this partial stack pickup scenario. I hope this adjustment clarifies the issue that the report was intending to highlight.
I'm not sure how the Allay stores its items internally, but I did read from another report that it is not handled like a slot. I presume the last stack it picks up (after the 63 items) somehow just all goes into one of 64 "slots" or something? Tricky to tell since it doesn't show up in the nbt.
Edit: Nevermind disregard that, I confused myself from earlier thinking it picked up all the ghost items. Probably just one item each, only weird thing is it leaves a ghost item.