Similar issue with: https://developer.apple.com/forums/thread/678105
The consumeable item can successful purchase first time, then if try to purchase same product again, a popup "This In-App purchase has already been bought. It will be restored for free." will show and make the purchase failed.
- Very sure all product to purchase is Consumeable items.
- All product has can be purchased in pervious builds, but in latest version with no changes in code, the purchase failed.
- Issue occur on both TestFlight and Sandbox, since App is not available on App Store yet, not sure is production environment has the issue or not.
- Issue first found on 6/27 AM 0800 UTC+8 in our side, but may be occur earilier.
- Very sure the finishTransaction API is called on every purchase, but seems no functhinal.
Thanks for help. Miki