Minecraft version
1.19.2

Mod version
3.1

Describe the bug
Tainted Cobblestone and Tainted Stone are extremely difficult to mine, as pickaxes do not affect it's speed in any way, these blocks will also never drop themselves in item form when mined.

To Reproduce
Steps to reproduce the behavior:

1. Place either Tainted Cobblestone or Tainted Stone
2. Give yourself a pickaxe of any kind and start mining
3. Takes ages to break it
4. Doesn't drop item upon breaking

This bug can be potentially fixed by adding these blocks to the 'mineable/pickaxe' block tag, as they are not in this block tag in the current version.

I noticed this too, I thought it was intended.

Will be fixed in the latest update.