Hello i'm sorry i can't help your problem, i'm working on accessing the main camera too but i keep getting this error : ar_camera_frame_provider_t: Failed to start camera stream with error: <ar_error_t Error Domain=com.apple.arkit Code=100 "App not authorized."> even though i allowed the main camera access entitlement and capability could you maybe help me with how you got camera access ?

Ok i just restarted my mac in safe mode and now it works

try this : https://medium.com/@xinyichen0321/the-easiest-way-to-test-shareplay-on-visionos-apps-7bf8a1753d8e

hello i'm having the exact same problem as you, i didn't quite understand your solution did you just end up using a different wifi and it worked straight away ?