AVSpeechSynthesisVoice works on iPadOS 16 physical device, work on iOS16 simulator, but not work on iOS16.0.3 (require to select in iPhone > Settings > Accessibility > Spoken Content > Voices ; it will override no matter what voice you choose)

I found the solution..... DEPLOY TO A REAL IPHONE, don't do it on simulator..... everything works fine then.

There are 15.6 device support file in some github. You may try to search and download a 15.6 device support file and paste it to Xcode > Contents > Developer > Platforms > iPhoneOS.platform > DeviceSupport

I am facing the same issue, and my apple data and record type can not sync to cloudkit dashboard Did you solve the issue at last?