Sure: FB20169481

Yes, we have had the same experience. We also have an unlisted app where AppClip no longer works with iOS26 (see https://developer.apple.com/forums/thread/799207) Since it is so frustrating that our customers can no longer use our solution, we have now re-listed the app as a public app (because it is not possible to change an unlisted app back to a public app) and lo and behold: with a public app, AppClips are working correctly again. So it seems to be due to the “unlisted app” thing