Looting enemy with autoloot instantly closes loot windows without taking items

Looting an enemy with Autoloot enabled sometimes open the loot window and closes it again instantly, without looting. If autoloot ist disabled the window shows “empty slot” as an item, with which I can not interact.
After the error occurs, the corpse is not lootable anymore.

I disabled all my addons, but the error still is there.

I did not count it, but I would guess that about 15% of my looted enemys show this problem.

I am not sure if this means the enemy had no loot or if it is a bug.

Disabling an addon often is insufficient, you have to remove them completely more often than not.

Azeroth Auto Pilot (AAP) is well known for this bug.

i don’t use any addons and I have this issue