[MC-214944] Chucks fail to generate or load

The chucks never generate or don't load. This issue seems to affect multiple areas. My seed was 4976586551792305041 btw.

Some screenshots are attached.

Related issues

migrated 2021-02-10T22:41:54Z

[media][media]

migrated 2021-02-10T22:49:28Z

It seems like they are generating (failing to load in the client) because I can view them in mcaselector without a problem, but can't use the world.

Saving the world did temporarily fix the problem. It was likely a server crash like I frequently experience in 1.16.5

Mask3D_WOLF 2021-02-10T23:11:25Z

With the information provided, this appears to duplicate MC-214898 or MC-214808

migrated 2021-02-10T23:36:29Z

Yep, seems to be the same