Changing Skins changes everyones skin in the realm

Ran into this pretty bad bug while playing around with custom skins (imported). Basically, changing skin would mess with everyone else's skin as well. 

 

https://drive.google.com/file/d/1n3Awlify6jVtm0Vl74wmRPzBbg_E1pCt/view?usp=sharing

Here is a video [FR] of the bug, hopefully it can help.