Emerald ore and infested blocks do not generate in Snowy Mountain biomes in 1.17.1.

I have attached a map from seed 231065416999680 showing emerald ore distribution per chunk.  The area labeled "Snowy Mountains" does not contain any emerald ore.  One area of regular/wooded mountains was generated in 1.17.0 so has a higher emerald ore distribution than the rest of the regular/wooded mountains.  The snowy mountains were generated in 1.17.1

The map for infested blocks is roughly the same but with different distribution densities.  None in the snowy mountain biome.