Your gonna need to fix this when you make the next update cause now whenever i change my skin and put my username but right when click on either create, join and public quenue my skin changes and right when i exit it deletes my username i put and changes my skin again so your gonna fix that for your next update.
What browser are you using to play the game? (Like chrome or firefox etc...) It might be a problem with the game saving those values to your local storage since it might be failing to save your player information to a location. Chrome works fine and I just haven't tested it out on anything else. Let me know! :)