I can confirm that turning off "Focus on Reveal" fixed it for me.
For clarification of the issue:
- All keystrokes were going to the Tree View.
- If I clicked on the edit pane and pressed"up-arrow", the cursor moved up in the Tree VIew.
- If I clicked on the edit pane and pressed"d", it would start the process to duplicate the file selected in the Tree View.
- Note: I needed to use the mouse to find and change the "Focus on Reveal" setting since the keyboard was not working in the settings dialogs either.