Game does not have focus at launch

When running a game in PIE, standalone, or package the game does not gain initial focus. User must click inside the game window to enable input.

4.19 Updated

1. Open UE4Editor (any project)
2. PIE or (Play) New Editor Window

Result:
When game starts user does not have control of the character, must click in the game first to gain control

Expected:
Game starts with user in control of character (viewport focused)

Original
1. Open UE4Editor (any project)
2. PIE or play in standalone

Result:
when game starts user does not have control of the character. Must click in the game first to gain control

How to avoid initial mouse click after game start?