It has been three weeks, and I've lost faith that they can solve it. The problem that bothers me most is that I couldn't reach/find anyone from the technical level support team who knows about these important concepts. I know these programming areas are not very popular, but I think they are still important, and you have to keep some people in the support teams who are knowledgeable about these types of projects.

Thank you @ssmith_c. I had followed the same steps before the forum post to diagnose the problem, and we both observed the same results. Unfortunately, I am having a hard time explaining this to the App review team. It has been two weeks. I requested code-level support, appeal, and rejection clearance, but these are not working as they should. At this rate, it may take a month for them to admit they are wrong, and a simple sorry shouldn't be an answer to the financial losses caused by the delay of the software to market.

Thank you, @ssmith_c . I'm struggling with the same issue now, and I couldn't get any support but you. I couldn't access the bug you referenced. What was it about ? As I inspected the details of the Xcode signing process, I saw the app sandbox entitlement is stripped in the progress between clicking the distribute button ( in the Xcode archiver ) and sending it to the Apple Store connect. The entitlement is present before that, which I can see when I inspect the archive artifact ( it is embedded inside the DEXT executable ).