Requesting an In App Purchase in iOS 13 fails

Question

Restarting Xcode and simulator did the trick: now my in-app purchases load properly in iOS 13 simulator.

EDIT: This happens in release Xcode 11 too. And happens once in a while, but restarting Xcode and simulators still helps.

EDIT 2: In Xcode 12 beta this bug is also present. But the solution is to create new StoreKit Configuration file (in File -> New menu)

Adding StoreKit Configuration file

Then add all your products there. Use the same product id’s as in AppStore Connect.

Adding products

Then add this file to Run Scheme configuration.

Setting Scheme Run options