[MCPE-153316] Massive portions of chunks below Y=0 are missing

Massive portion of the underground missing, slight visual difference when above ground (Missing chunks). Reloading the world caused small bits of land to load in, but there is no sign of change. I didn't have any data on this world, so no builds were affected.

Linked issues

is duplicated by 2

MCPE-153394 Chunks below Y:0 are missing Resolved

MCPE-153420 Void at Y0 on version 1.18.30 beta Resolved

Attachments

Comments 3

[Mod] OcelotOnesie 2022-03-23T11:23:36Z

This is a known issue mentioned in the 1.18.30.26/27 changelog:

Older worlds that have areas unexplored since before 1.18 may experience issues in those areas with below y=0 not generating correctly. We suggest that you make backup copies of your worlds, and avoid opening pre-1.18 worlds in this Beta/Preview build.

Angela Cauley 2022-03-24T02:49:39Z

I had this happen on a world that was made post-1.18.2 and the missing chunks were previously explored.

[Mod] OcelotOnesie 2022-03-27T20:53:43Z

This issue should be fixed in 1.18.30.30/31:

We have addressed an issue from the last beta that caused chunks below y=0 to become corrupted. The chunks will no longer become corrupted but any chunk that was affected will revert to its original world generation.

https://feedback.minecraft.net/hc/en-us/articles/5082403383309-Minecraft-Beta-Preview-1-18-30-30-31