This is my first in-App purchase App. I have other paid Apps and my business status are all active. I tested the in-app purchases on my devices using a StoreKit file and Xcode. I removed the StoreKit file from run configuration Scheme, I added in-app purchases to Signing & Capabilities then archived, validated and uploaded build to AppStore connect. I added two testers - a sandbox account (gmail subaddressed) and another gmail account. When I try to load the App using TestFlight I immediately get "couldn't load App". This is an App that previously had no in-app purchases. I added in-app after version 1 (tested ok in TestFlight). Now trying to test version 3 in TestFlight. Any insight would be appreciated.