As title said, We can only create pull request but cannot create an issue on Github UE4.
These line looks like potential deadlock from mutex in AndroidPlatform.Automation.cs
https://github.com/EpicGames/UnrealEngine/blob/c3caf7b6bf12ae4c8e09b606f10a09776b4d1f38/Engine/Source/Programs/AutomationTool/Android/AndroidPlatform.Automation.cs#L2021-L2069
Do you guys expect us to post UE4 source issue in this forum instead of Github?