In servers, I have often experienced my skin being switched in-game with those of other players. I have talked to other players who have also complained of this issue.

When I am on a multiplayer server, my in-game skin is frequently switched with the in-game skins of other players in the game. This is noticeable not only to myself, but to other players who look at my player. I have heard several other players from a multitude of different server complain about this issue, but none of them have reported it. I would include a screenshot of this issue, but I don't see how a screenshot could actually show the problem.