How can I turn GPS-Traces OFF in potlach? If I hit “G” again the current traces will only be reloaded…
I think you can’t do it totally in any other way than by closing the editor and starting again. However, if you press shift-g then Potlatch will show just your own GPS-Traces.
This is probably a bug, and I’m sure Richard will see this soon. 
I usually just click the edit tab to restart the editor, you will get the same area again.