Issue appears to be on the client side as the server doesn't seem to report any issues.
Working fine until I approached the end city portal on the main end island, then the game saved and closed itself and gave me a crash report indicating that it high an out of bounds exception while rendering a block entity.
The game crashed whilst rendering block entity
Error: java.lang.IndexOutOfBoundsException: Index: 16, Size: 16
This continues to happen every single time that I try to reopen the game, it will look like it starts to render and then the exit with the crash report.
Thank you for your report!
We're actually already tracking this issue in MC-166004, 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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