[MC-130843] Map is gray

I open a map from a world from 18w16a and the map is all grey will only a few green leaves?

Linked issues

duplicates

MC-129623 Maps get filled with gray areas instead of revealing terrain

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Comments

kumasasa 2018-06-05T08:21:53Z

Happens in worlds corrupted by 18w16.
Won't be fixed.

migrated 2018-06-05T08:53:00Z

so what can i do about my maps?

kumasasa 2018-06-05T17:20:24Z

Re-create the world in 1.13 release version or restore a backup from before 18w16

migrated 2018-06-15T08:19:32Z

i have build everything though... i dont want to delete everything, ive found a fix but its tedious. place a whole load of blocks over the map and then set air and it updated it i see why it bugs now... you guys fixed the grass bug...