Hello, sorry to bother you.
I'm having a weird bug where crows that are set to gather items will randomly disappear.
The trigger can be anything from leaving the area to relogging.
This also includes teleporting via any means, be it command or another mod's function.
This bug is also reproducable in vanilla 1.16.5 without any other mods and the triggers for this are still the same, being leaving the area, teleporting or relogging.

Mod version: 1.12.1 for minecraft 1.16.5.
Citadel version: 1.8.1 for minecraft 1.16.5
Log files don't provide any information regarding crows what so ever.
But should they be needed, I will provide them as instructed.