[MC-181509] Map bug from 20w17a still not fixed

Map bug which causes maps to look corrupted has still not been fixed even though in the 20w18a updates it said it was.

Related issues

migrated 2020-04-29T19:07:01Z

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violine1101 2020-04-29T19:12:11Z

Read the comments in MC-179858.

migrated 2020-04-29T22:17:10Z

My world was never in 20w17a this glitch is from 20w18a

violine1101 2020-05-03T19:28:29Z

Please try the fix from MC-179858 nevertheless and report back if the issue continues to happen.