Whenever a player equips an elytra and there’s another player near them with a different cape, the capes will interchange.
And when you change your cape in the dressing room, a pop-up says “A local or platform skin could not be loaded.”
Here’s a video of it happening through this youtube link:
Linked issues
Comments 2
This issue is being tracked at MCPE-53595.
I have been experiencing this too, it has been a really annoying bug because I want to see the elytra of the cape I am wearing and not of someone else’s cape.