It just jumbles chunks messing with builds and lags the game a lot. Its happened before on the demo version and still happens. I think maybe its caused because of the RAM allocated to run minecraft (the one you can edit in the launcher) already occupied by some other tasks.
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violine1101
Thank you for your report!
We're actually already tracking this issue in MC-161823, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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