I have only played murder mystery so far to notice this bug and it has happened on every map I played.
After the first game is done my skin gets changed to a default skin and this can also be changed after a few games as well. I have seen this has been reported before, however this was back in February and the bug is still here.
Also my skin is a standard skin I created, it is not too translucent or small so it doesn’t go against any rules to be removed.