So I went into the beta to test out the nether update because I was curious to see what it was like and I went to check to see if there was any new updates to the skin creator and I found a new cape called the "pancape" I decided to put it on and decided to start up a creative world to see what it was like, after a while, I remembered my new cape and I wondered what the elytra texture looks like. So I put on an elytra and then The elytra is just, not there, like the elytra still functions as normal but it has no texture with the pancape, I tried with other capes and without capes and every time it worked, but when the pancape is on, there's no texture.