Skins Swapping Between Players

Me and my fiance play together with some buddies in a realm, but whenever we join the realm, only her selected skin and my own selected skin get swapped. 

 

Notes:

-Only happens right when the other enters the server.

-No other players are affected.

-In screenshots below, she has the correct skin on my screen, but on hers she has mine from when I originally entered the server.