Now it finally works. I didn't do anything. Seems like you have to wait until uploading works again.

Yes, I did. When I refresh the page, all screenshots are gone. Then I try to add some new but they are only blurred and "loading". It feels like it's a bug and I can't do anything myself.

I think I found out the issue, but I'm not sure yet. I just realized there is another .entitlements file for Release (shows up in Finder). I didn't know that because it doesn't show up in my Xcode project navigator. So there are 2 .entitlements file. And in the Release.entitlements file there is no "com.apple.developer.networking.multicast" inside it. I'm uploading my app to TestFlight at the moment and I will give feedback when I tested the new version. UPDATE The app finally works. So at the end I just had to add "com.apple.developer.networking.multicast" to the Release.entitlements file and set Value true.

I already added com.apple.developer.networking.multicast in my .entitlements file. It works when I start the app from Xcode. That's why I'm confused that it's not working from App Store but from debugging.

Can you post the actual results? I’m flying blind here! Sure. It looks like this: dict keyapplication-identifier/key stringMyTeamIdentifier.de.cartesy.CartesyLivestream/string keybeta-reports-active/key true/ keycom.apple.developer.team-identifier/key stringMyTeamIdentifier/string keyget-task-allow/key false/ /dict Oh, and my previous post failed to do that properly, where the second command uses Test747881523.app rather than YourApp.app. Sorry about the confusion. I tried the command again and now it worked. Also I can see the multicast entitlement in there. .... keyEntitlements/key dict keybeta-reports-active/key true/ keycom.apple.developer.networking.multicast/key true/ ..... others ..... /dict keyExpirationDate/key

Thank you for your response. I followed your steps until step 7. After the first command (I think it shows the entitlements file?) I can't see any multicast entitlement... only some identifier and other stuff. The second command unfortunately doesn't work, it says directory not found. In Payload I only see my apps name.