Trevor Kensiski
Assigned
No issues.
Reported
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Comments
Can confirm this is occurring with my worlds as well, New and existing.
Survival - Normal game settings, seems to be worse on hard.
Pretty easy to reproduce, just wander around and you will start to see them. Seems like Creepers, Zombies and Skeletons spawn up on trees now.
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I also have experienced this issue a few times. I am unsure of how to reproduce as it happened randomly upon joining the world. This was a local game on my Xbox One X.
Edit: Noticed that this tracks the issue first: https://bugs.mojang.com/browse/MCPE-38374
This is happening to me as of at least 1.11. Still happening in 1.14 too.
Seems to happen to Cows, Sheep and horses. I haven't really noticed it as much with other mobs but as OP stated, this will required more testing.
From what I can infer watching the animals in my screen shot is that they wont give up pathing to a point and as such they get bunched up and end up cramming in the SW corner of any pen I create for them.
Update: Pigs are now starting to cluster too. They are less prone to it due to how the fences are placed in my village. But I definitely see them hit their farthest SW corner then change directions but get blocked by other mobs pathing there as well causing them to bunch for a bit until the entire group pushes each other around enough to free the ones who got to their point.
You can sorta see this in the Sheep and Cow pen. Notice the one crammed into the corner is facing NE heading and the rest are still trying to shove into the SW corner.