This happened twice today. At first I thought Igneous Lavagorger scammed me but turned out it’s just a visual bug.
When I attack a minion with Supercollider for the first time, my armor indicator moves to a wrong place for a second and then disappears. It can be visible again shortly on my next weapon attack. I use Vanndar as my Warrior portrait, if matters.
Not sure, though, if it’s caused by Supercollider only, or Supercollider + Vanndar combination.