Interrupted Purchase Test does not work in Sandbox

We are testing in-app purchases in a sandbox environment. In doing so, we encountered a problem with the "Interrupted Purchase" section. In the documentation, it says that "Interrupted Purchase" can be tested with steps 1-12. In fact, we can pass from 1 to 9, but at 10, we could not receive a new transaction of "SKPaymentTransactionState.purchased" in updatedTransactions. Is there something wrong with our app or sandbox environment?

Best regards and thanks in advance.

Did you ever find a solution to this? I am having the same issue as you where step #10 from apple's documentation doesn't come up UNLESS the app is backgrounded (home button) and then relaunched again.

Interrupted Purchase Test does not work in Sandbox
 
 
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