App does not resume after locking and unlocking on iOS

Locking and unlocking the device does not allow the app to resume where it was left off.

The app is running in the background but when you double tap home button and select it, the app will restart from the beginning.

iPod6_6131 OS:9.3.2

Initially found with packaged match 3 from root\Builds\UE4\PackagedBuilds++UE4+Main\CL-3012125\UnrealMatch3_IOS_Development

1. Launch any BP project on an iOS device
2. Lock the screen with the power button
3. Wake the device with the power button and unlock

Result: Device home screen is shown

Expected: App resumes