My Mac app is missing from that list too. My iOS app that is pending release is listed. Selecting that app and then I can switch to my Mac app from the app selection drop down.

Found this question when looking solution for similar crash in my app. Though stack trace is not identical I have a crash caused by AdMob SDK 9.x.x versions. My app works fine when using 8.13.0 version. Version 9 seems to work on iPhone but not on iPad. So changing Podfile line pod ’Google-Mobile-Ads-SDK' to  pod ’Google-Mobile-Ads-SDK’, ’8.13.0’ and running pod update fixed it for me. Of course it would be nice to be able at some time upgrade to version 9.

Last tested XCode 13 beta 5 and macOS 12 Beta 6 and problem persists.

Yes, same here - but deleting apple.com cookies fixed this.

Often requires second click to see Trends. Or refresh of the page. Using Safari.