Okay, so this has been happening for quite a while, so its not something with the current version.
Basically trees and other structures are being cut and earased along random lines. The trees do not initially generate like this, but in fact gradually start to show up that way. My belief is that it happens when I render the trees or other from a far away distance. My other theory is that it happens when i fly at high speeds over un rendered chunks, but that is less likely.
I have several screenshots shown and will be happy to provide any other needed data to fix this.
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Thank you for your report!
We're tracking this issue in MCPE-11908, so this ticket is being resolved and linked as a duplicate.
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Ah, i did search but i couldnt find one like mine, the search in this site kinda sucks, thanks for the info though.
Oh and I forgot the steps to replicate. the only things that i really needed to do was to turn rendering distance up to 36 and higher chunks away and this started happening