My character Buffy is a sampire, I use an arcane robe. I would suppose this is another effect from that initial problem with other garg items. like when my Tangle did not equip.
I tried to make a Garg robe arcane and it wont't. My character can wear a regular robe or even an event robe.
I tried to make a Garg robe arcane and it wont't. My character can wear a regular robe or even an event robe.