iOS 16 Beta 6 Testflight not installing apps

We built a standalone WatchOS app with Xcode 14 beta 5 and uploaded it to Testflight. Minimum WatchOS version is 8

Installing it through an iPhone with iOS 15 is no problem. Installing it through an iPhone with iOS 16 Beta 6 does not work. We get the circle progress indicator but it doesn't move.

When I look in the Console app and check for Testflight logs I see this:

Error getting application record with bundle ID com.---.---.watch.watchkitapp: The operation couldn’t be completed. (OSStatus error -10814.)

Any idea what's going on?

iOS 16 Beta 6 Testflight not installing apps
 
 
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