When I try to change my skin on the website (which I always use), it doesn't say it was updated. But when I change it on the launcher it says "Successfully updated your skin!" But then I relog in to the server I'm in and it never changed. So I try to spam changing it, which never works. My friends are also having the same exact problem. But when I check NameMC, it shows the skin was changed, same with the launcher, but not in the actual game. So we think it's the server, but we try to change it on other servers but it's the same issue. For the skin to update, it takes about 5-10 minutes. Also on the website, when you change it, it doesn't say anything about it changing the skin.