After entering any blacklisted biome in the correct format of a array, the config file resets and the blacklist goes back to the default blacklisted biome, spectrum.

I tried leaving spectrum in there, and taking it out, all the time the lootcrates config resets with the biome going back to the default one.

Note: only blacklisted config entry resets, everything else stays the same.

Latest version, 1.17.1 fabric.

this one is fixed in the version >2.1.2

Are we talking about biomes or dimensions here?
The only config setting there is to exclude stuff from worldgen is about dimensions.

Dimensions, apologies.