Seed: 127129
Pumpkins: /tp @s -108 72 99 180 0
Linked issues
is duplicated by 1
relates to 2
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Comments 22

Updated new seed and coordinates in 1.14+ villages.

Relates to MC-174164 and that one old large oak tree bug

Also relates to MC-167073
send debug screen on photo
Can confirm in 1.19.2.
I cannot reproduce this in the latest version, 1.21. When finding these features, they properly convert the grass blocks beneath them into dirt.
Seed: -9052429000080258218
[media][media]
Tried another world and still cannot reproduce it:
[media]
The grass did take a long time to convert, but it did eventually do so. This can be observed using /tick sprint.

@@unknown, this is a world generation issue.
Based off of the original title and description alone, I was unaware. I had the impression this was to do with general conversion of the blocks at all. Regardless, thanks for letting me know and apologies for the faulty CR resolution.
I have created that world in 20w17a, but at coordinates -259 64.64 252 there's no village.