I've been encountering a small bug where when I look at my champs, few have icon for a different champ, recently Gnar had a Quinn icon and Vladimir has a Rammus icon. Happens quite frequently. Just reporting to be of some help. :3 (not sure how to add screenshot)
Deep Terror Nami1 votesI believe this happens when a champion changes position on the list due to getting a Mastery level. I think changing the sorting order to something else and back fixes it. It's been like that for a while, so I doubt it'll get fixed until the new client.
Aggredion1 votesMmm. I guess. I've never played Quinn before and gnar didn't move any higher but he did become lvl 4. But then again Vlad was shown as Rammus he he didn't change a bit :/