this is probably a bug due to my world being created in 1.16, but this terrain being generated in 1.21. i used an ocean explorer map to find the monument, and that map was also created in 1.16.
even the map doesn’t line up! i’m guessing it follows what the terrain would’ve looked like in 1.16?
its 2092571018 at the coordinates -2251, 65, 1853
but like I said it’s an artifact of an old world being converted to newer versions, if you generate it in a new version straight away this won’t happen