I think my error was a bit different, because I was still able to mine blocks on the same chunk where I mined the block that crashed the game
Seed: -9077468814766215050
Coordinates: -8032 80 6863
Coordinates where the "/locate" was used: -200 70 20
(This time when I checked in another world the Mansion actually spawned, but the other 2 times I tried it didn't appear)
Is only when I mine that particular block. I mined like 10 blocks away and was able to continue playing normally (The crash was repeated about 3 times in different locations)