All is in the title. We've been running through issues with Amazon since the past few days, it took ages for Amazon to process our Live App Testing, once it was working all our IAPs were not working, we investigated for ours not finding any issues and it miraculously worked again after a few hours. We then submitted to live and now that we're live our IAPs are again not working!
This looks and feels like an issue on Amazon's end. Any thought?