IAP fails (in-game) on iOS Match3

The device this was tested on is 4987_iPhone 6+_11.2

The live build didn't provide UE4 logging, but that will be added.

There is also a failure to purchase on Android but it gets farther than this; it occurs when the store attempts to charge the credit card, so that will be logged separately.

1. Set up an App Store account with a credit card (Note: I also set up Apple Wallet, although I don't believe this is normally necessary to make IAP)
2. Download the live 4.20 version of Match3
3. Run the app
4. Switch to the night screen
5. Select Buy and then select Continue

RESULT: "Failed to make purchase. Please try again."

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