Problem with skins

So, I really like Minecraft, but there is a bug which is VERY ANNOYING. So, when I join my friend's world I see myself with his skin and he sees himself with my skin. Same with more players: for example, I see every player (and myself) that is in the world with player's that created the world skin and same with other players, but in servers this is not happening. So can you please fix that? I'm using Minecraft Windows 10 (Bedrock) edition.