Over the course of playing in various Snapshots some chunks (which i dont visit often) got reset and regenerated (with new Block e.g. the glowing Lichen). My spawn chunks/regular vistied chunks are still the same. The Structures aswell just generate the same.
(this world was last openend in 21w03a due to being an Old world)
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Avoma
migrated
Duplicate of MC-216148.