Reproduction:
Start in a plains biome with water near by
Set the surrounding area to snowy plains
Set weather to rain
Allow snow to build up and water to freeze
Set biome to desert
Observe snow & Ice doesn't melt
Reproduction:
Start in a plains biome with water near by
Set the surrounding area to snowy plains
Set weather to rain
Allow snow to build up and water to freeze
Set biome to desert
Observe snow & Ice doesn't melt
I don't know what do you mean. If you mean "when fill hot biome using /fillbiome, snow and ice don't melt in that biome even with light source nearby", I cannot confirm this issue. And if you mean "when fill hot biome using /fillbiome, snow and ice don't melt in that biome without light source nearby", this was intended, as snow and ice melt depend on the light level, not the biome they in.