Dungeons/Monster Spawners spawn normal cobblestone when below y-0.
Seed: -7985572563563903889
Coords:
/execute in minecraft:overworld run tp @s -2598.68 -23.31 -1261.37 -2787.27 25.05Linked issues
is duplicated by 4
MC-216891
Dungeons below y=0 still spawn with regular Cobblestone
Resolved
MC-221601
Dungeons that are generate in the deepslate levels are made with cobblestone,not cobbled deepslate
Resolved
MC-241694
Dungeon rooms generated below y=0 use cobblestone
Resolved
MC-242326
Spawner-Rooms do not use cobbled deepslate
Resolved
Can confirm.
Probably WAI, but seeing as how stone is not supposed to spawn below 0* (and cobblestone by extension) and Mojang will retexture grimstone varients of ores for visual reasons, it is plausible that this may be fixed.
*except when lava meets water.