Visual Bug with Elytra and Capes in Multiplayer

I would like to report a bug related to the elytra: my friend and I both have capes (each with a different one), and when we wear the elytra, automatically, both of us see my friend’s cape applied instead of our own. If I play alone in my world, my cape is displayed correctly on the elytra, but when he joins and we both play in my world, the issue occurs.