So, I've been trying (yet again) to do a little modding of the shard system and I've run into a problem. Instead of spawning all different types of shards, I wanted a raw shard type to spawn initially. I took a copy of the CoreShard file to the modding folder, set the rarity of all the existing types to 0, and created a new shard type with a non-zero rarity (first 100, then 20).
Problem is, I get something like this on map generation. Shards everywhere! Does anyone have any insight? All the life-shard looking things are the new base shard type.
EDIT: Ok, the spawn rate seems to depend on <MinPerPlayer> tag of all the shards, even the ones that have their rarity set to 0. Weird.

