@JakeShort thank you so much! This was exactly what I needed

How was the pass signed? see https://developer.apple.com/documentation/walletpasses/building_a_pass#3732525

Take a look at this article: https://medium.com/@daviddvd19/inapp-provisioning-enrolling-cards-en-5c368591d320

Hey, I'm really not sure about this (and maybe you already found the solution), could it be that the use of Beta profile is for DEBUG/DEVELOP and not for RELEASE/TestFlight?

I am seeing the same issue on Xcode 13.2 beta. After running the code under Xcode 12.5.1, This log message appears: [Assert] Attempted to scroll the collection view to an out-of-bounds item (0) when there are only 0 items in section 0. This will become an assert in a future version. I guess this is the future version when it was decided to assert. You could try to guard the code from being executed: guard indexPath.row < collectionView.numberOfItems(inSection: indexPath.section) else {return}