Whenever changing between dimensions the chunks seems to not load after a few chunks, the chunks seems to not generate and all entities start glitching. It happens constantly and the only way to fix it is by leaving the single player world and load it back up, the bug usually happens when traveling from either the end or nether and going back to the overworld.
To reproduce
Go from either the end or nether then go back to the overworld.
The chunks then stop to load after a few chunks and entities glitches outΒ
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duplicates 1
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As you state that you're using OptiFine, which is a mod, this issue is invalid.
Please only report bugs that can be reproduced in a vanilla (unmodded) client.
Also a duplicate of MC-227996.

Thank you for your report!
We're tracking this issue in MC-227996, so this ticket is being resolved and linked as a duplicate.
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i also posted the same issue. See this linkΒ MC-229582