I observed this on a multiplayer server in the 20w21a development snapshot: a Woodland Explorer map led me to a dark forest biome, but the mansion was missing. Caveat, the world's been migrated through most of the 20w* series, the map was obtained in 20w19a, and the chunk with the missing mansion was first generated in 20w21a.
Seed: -3791890928347572683 Mansion coordinations (approximate): x = 4360, z = 18360
Dan McGee
I observed this on a multiplayer server in the 20w21a development snapshot: a Woodland Explorer map led me to a dark forest biome, but the mansion was missing. Caveat, the world's been migrated through most of the 20w* series, the map was obtained in 20w19a, and the chunk with the missing mansion was first generated in 20w21a.
Seed: -3791890928347572683
Mansion coordinations (approximate): x = 4360, z = 18360
Please let me know if you'd like any more info.