Is anyone able to use SharePlay in the RC builds? The SharePlay Developer Profile doesn't seem to be working anymore. I don't even see the SharePlay Developer Profile in developer.apple.com/download anymore.

OK, turns out the issue is that the SharePlay Developer Profile still requires the com.apple.developer.group-session entitlement. The wording on https://developer.apple.com/news/?id=mxaeu6er made it sound like we should remove the entitlement, but perhaps that is only needed prior to submitting an iOS/tvOS 15 build to the App Store. Added the entitlement back and now SharePlay is working in beta 7.

I'm trying with iOS beta 7 and the updated SharePlay Developer Profile and I'm getting the following error: Error preparing group activity: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.group-activities.conversationmanagerhost was invalidated: failed at lookup with error 159 - Sandbox restriction." UserInfo={NSDebugDescription=The connection to service named com.apple.group-activities.conversationmanagerhost was invalidated: failed at lookup with error 159 - Sandbox restriction.} The call to prepareForActivation() is returning .cancelled without any prompt on the device.