iOS In-App Purchase doesn't work

I’ve set up IAP for iOS abd Adnroid. It works great for Android, but it doesn’t work for iOS.

Here’s my DefaultEngine.ini:

[OnlineSubsystem]
 DefaultPlatformService=IOS
 
 [OnlineSubsystemIOS.Store]
 bSupportsInAppPurchasing=True

[OnlineSubsystemGooglePlay.store]
 bSupportsInAppPurchasing=True

[OnlineSubsystemGooglePlay.Store]
IsAllowedToMakePurchases=True

[OnlineSubsystemIOS.Store]
IsAllowedToMakePurchases=True

Here’s my Blueprint:

When I press in-game button to execute “Make In-App Purchase” node, it just exec “OnFailure”. Without any delay

Here’s my Project Settings:

Here’s my IAP in iTunes Connect:

Still doesn’t work on Preview 8