Water generated in villages above air blocks does not flow

Please provide seed and coordinates.

ill get it tomorrow, it was very close to spawn

does this image help?

this is because it doesn't update, it's the same thing that causes floating sand and gravel in caves

yes but floating sand and gravel is intended, this is clearly not

Hmmm. I tried to reproduce this today and I entered the seed and coordinates correctly put no farm could be seen. I've attached a screenshot.

Update:

I've managed to find a seed which this problem occurs in as the seed provided in the description of this report no longer works. Can also confirm in 20w51a.

Seed: -5436467103508185805
Coordinates: /execute in minecraft:overworld run tp @p 78 63 -363 facing 80 66 -360

Can confirm in 21w03a.

Resolving as duplicate of MC-140780 since that appears to be the underlying issue.