After unloaded chunks with entities, and so loaded them again, the mods and enetities in general appear duplicated. In this case, parrots, boats and turtles on the boats, and originally they were all in the same position/block.
MC-141164
Entity duplication after unloaded chunks.
Resolved
Awaiting Response
0
Andrea Nappo
(Unassigned)
Unconfirmed
(Unassigned)
Minecraft 18w50a
Retrieved
same.
referred bugs
MC-140891
MC-140038
to here on amount they are the same