I don't know if its my fault or not but i found a stoneholm generated with water everywhere, in particular water spawning inside blocks like stairs, walls, and chests.
I could think its my fault cause i have a world generator mod and it may be breaking stoneholms generations but i did some tests early and this didn't happened.
(Info: MC 1.16.5 / Forge 36.1.13 / Latest mod release)

Fixes for water were in 1.3.

Fix for generating in the air is coming in next release.

Update: I tried to find the problem and i think its the fact that it generated inside a river (the portion on it with water is corresponding at the one being inside the river).

Aye this has to do with Minecraft generation.

I can't seem to find a way to fix it currently which is why by default they don't spawn in any wet biomes.

Update: I tried to find the problem and i think its the fact that it generated inside a river (the portion on it with water is corresponding at the one being inside the river).

The fact that it is so high up is another issue though. May I have the seed for this world?

Hi again, so if u want i can try to recreate this with and without the generator mod to be sure its not my fault, by the way i did some screenshots too if you'd like them.
Seed:1772609852839529583

same issue happened to me, I don't have the seed on hand but if it happens I'll send you it