Thank you so much Nils.CEWE for this hint regarding the orientation '0' being not accepted! Now at least I know why it keeped crashing randomly. I need to implement a fix now ;-)

The only addition I have made with external references is 'import mapkit'. As described this runs smoothly on Debug mode on an iOS 9 and also using IPA releasing method. So this is not linked to a "clear" incompatibility. Additionally during coding, Xcode tells me no warning that my code would be incompatible on iOS 9. My app is a picture slideshow exactly dedicated to reuse old devices and turn them into something more valuable than the garbage bin ;-)

I reverted the code base to the same that was published and stable some week ago. I published with it a new version. Unfortunately, after publishing, the new version crashed at start. This makes me think that Apple did some changes under the hood and that I will not be able to fix that on my own.. ;-(

I observed that Apple now fixed the issue. I could release 2 versions which previously crashed at launch and now it works fine again... I can only think that this issue had temporarily to do with the release of Xcode 14 (and oncoming support drop of iOS 9?).

Same issue here.. cannot download promo code since weeks ;-(