Not to sure how to report this. So i figured out a bug. If my chest piece is the same model as the one i am using for the transmog outfit in the wardrobe and i take a shower it drops its rarity by 2 ranks. Doesnt even matter if i am actually wearing it just hast to be in my inventory. But it only drops it after i reload so if i just keep playing it looks normal. First happened on a epic that got dropped to common and lost around 100 armor value. Not sure why it didnt nerf the armor on the legendary but it might be because there is not copy of that armor below legendary rank so there are no stats for it?