Bug seems to occur randomly, blocks certain areas from getting into them. They vary in size from 1 chunk and can spread (I think) throughout the entire world. They are impossible to cross via underground. Mobs which appeared to spawn inside have locked animations. Barriers tend to dissappear upon world reload, although after reload game once spawned me high above the ground, resulting in death from falling.
Below you can see blocked areas marked with holes on the areas' borders.
It's not the first time the bug occurred.
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I have the same issue, and the horse that I am riding gets the auto jump disabled as well when it happens

I have the same issue, and the horse that I am riding gets the auto jump disabled as well when it happens

Possible duplicate of MCPE-38868

Thank you for your report!
However, this issue is a Duplicate of MCPE-38868.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
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