I booted up a normal world in the new snapshot and made a rather large bee nest. I spawned in some bees with the nests and the new left the area for a while. When i got back one of my bees had lost their AI and just t-posed in the air. If the chunk unloading didn’t cause the AI removal it was probably the lag spikes I cause when using /fill to add all of the flowers you see in the attachments. Good luck - ic