Pickaxe problems

Game mode: [Online | Singleplayer]
Problem: Bug
Region: caves with brimstone

I noticed the pickaxe isn’t able to mine brimstone. All my other picks work fine (stone, iron, steel). The pickaxe still mines rock, wood, and iron just fine.

Steps on how to reproduce issue:

  1. Go to either Sinner’s Refuge or Gallaman’s Tomb and try to mine brimstone with a pickaxe.

I’ll second this. I just noticed this the painful way after running halfway across the map for brimstone.