I have made all the ornaments from my white solstice gear and they work all well on all armor pieces ACCEPT when applying them onto the trials armor. The solstice ornament (not white glow) you had to buy from the store with blight dust or silver still works on the armor. I think its just because Transmog is new and it just doesn't work converting the armor pieces with white glow to the ornament applying to the trials armor pieces. Just probably a minor bug but since this armor of mine has my best pve stats I would like to see it fixed. This bug could later on affect possibly other Transmog ornament applying to trails armor.