What I expected to happen was for my world to normally load , but it started to lag then it crashed. to trigger it is to create a flat world with the preset "tunneler's dream" and put your render distance to 10 chunks or higher.
MC-81340
right when I loaded my world , it immediately started lagging and then it crashed
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Incomplete without a crash report from (
[minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]). Please attach it so that we can diagnose your issue.