I'm having a problem with the skins in bedrock edition. When I am wearing a skin then the legs copy each other's looks, and it is annoying when the legs aren't supposed to look the same. But only when I have skinny arms, not when I have big arms. 

When I am playing with my sister and we are joining each other's worlds, then we can't change our skin in the world without the other person copying that outfit, not on purpose. We have to like leave the world, then change, and come back in if we want to change skins without the other person looking exactly the same. 

It been like that for a long time and I thought I could just wait for an update to fix it but now I'm just getting tired of it and asking for help. Please.