Seems mobs are forgetting they are leashed in a fence. The AI makes mob walk distant of the fence, and then return near the fence, and make it in a loop. This video explain better.
What was expected
The leashed mob walk around the fence
What occours
Mob try to go far from the fence
How to reproduce
Leash a mob with a lead
Click on a fence to tie it in the fence
Note that the mob go far from the fence
(sorry my bad english)
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We're actually already tracking this issue at MCPE-47168, so we will resolve and link this ticket as a duplicate.
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