Steel Pickaxe doesn't farm brimstone

Game mode: [Online | PVP official]
Problem: | Bug
Region: [NA]

[When using the steel pickaxe (the one that is both an pick and a hatchet) and you use it to hit a brimstone rock it gets nothing, the rock breaks and gives you nothing. I also have a tool upgrade kit on it as well.]

Steps on how to reproduce issue:

The Pickaxe registers as an axe first and thus does not gather the brimstone, it’s been like this for awhile now unfortunately.