I create a plan using the "Add Target from FOVI" feature in TheSky Plan Capture, then do File->Save Plan As in Planner. The plan then opens in my text editor, as expected. If I next close Planner, I get a dialog saying, "Your plan has not been saved. Are you sure you want to exit?"

If I click Yes (to exit), Planner exits normally and my plan has indeed been saved to disk.

This behavior appears to occur only when I use the "Add Target from FOVI" feature. If I click on a target in TheSky and then save the plan as described, Planner exits normally without the warning dialog.

This is not a major problem -- simply annoying.