There is a cobalt mining node in Borean Tundra, located near position 91, 41 where it gives you the mining skill up, but doesn’t allow you to loot the ore/crystals.
I’ve mined this node 3 times in a row now, and it happens every single time.
Hey out of curiosity, do you have the mining skill for it? I was doing the BT to HF run last night with my guild to pick up flight points and someone mined a red node. They were able to do it and got a skill point, but didn’t get any ore.
It’s not the only one, most of the cobalt nodes in Transborea are bugged, and I’ve had several bugged nodes around Scourgeholme in Icecrown as well. I’m reporting them through the bug tracker, but blizzard owes us this ore >:(