iOS Auto-Renewing Subscription Test Device Crashes

I have an app that uses Auto-Renewing In-App Purchases... During testing, I was verifying receipts against Apple's test URL. Now all of my TestFlight testers, and myself, are having an issue now that the app is in the App Store. When I use my Apple ID and account in the app, the app crashes trying to verify the receipt.

I deleted my app account's receipt data on the server side, deleted the app, reinstalled, and signed out of my iTunes account and logged back in. So there shouldn't a receipt in the bundle or on the server side, but the crash still occurs. Other (non-test) users are not having the issue.

Any ideas on what's going on?