Thank you, feedback number is FB15089865. Indeed, the experiences remain unpublished

@chbeer - I'm facing the same issue with only 4 Advanced Experiences. I did file a Feedback Report (FB15089865). Looks like an issue on Apple's side

Thank you for your response @DTS Engineer , my app is published and the https://app-site-association.cdn-apple.com/a/v1/ link looks good and the validators throw no errors. The debugger does give the same problem as @lyonlui ("No Advanced Experience is registered for this URL."), but everything looks correct and the application is published and accepted (as unlisted, but that shoudn't hinder the working of the clips, right?) Looks like other people are experiencing this issue too