It's possible that there's still a display bug with the Thief stone, although mine displays correctly.
Bear in mind that the change will be minimal. With an entire set of Divines armor, you may see a 1-2% change in crit value if you're using the Thief stone buff, depending on item quality.
Yeah, I just crafted a few new V12 pieces as Divines research completed and saw no change on the character sheet (Thief Stone as well). I hope it's just a display bug and I didn't just waste a bunch of tanins!
So whats better to have, mundus trait or spell penetration trait on your gear? Or spell power ? Not sure if there is a spell power trait? I mean if you only gain like %2 crit with mundus on all your gear then why bother with mundus trait at all.