After spending two days on trying to solve this problem I eventually did by just rebuilding the whole app from scratch. I'm sure somewhere in the code the directories were wrong but I couldn't find it.

Yes, I've added a visionOS App Icon. I used three images of 1024 by 1024 to create the icon. It's in my asset catalog. I read through "create an app icon."

Didn't work. I'm still trying to get a solution

dddddd3344 solution worked. I had to change to my paid account version.