When the viewport is locked to an actor the 'F' Key cannot be used to focus

If the user uses the feature to lock the viewport to an actor (such as a camera) and then tries to use the 'F' to Focus on another actor in the scene nothing will happen. The 'F' loses it's ability to focus.

1. Open 3rd person BluePrint Project
2. Select an actor
3. lock the viewport to the actor
   Click the actor > Click the little drop down arrow in the upper left corner of the viewport > Lock Viewport to actor > select actor you would like to lock the viewport to
4. Move around until you see another actor
5. Click other actor
6. Press the 'F' key to try and focus
7. Notice the viewport does not focus on the actor that was selected