Why are my files not opening in PS, when I select "edit in ps" ?

The external editor is Photoshop CC 2014 (PSD, Profoto, 16bit, 300ppi).   When I select edit in ps, ps opens but the file does not.  I suspect that I changed a preference somehow in the process of setting up the radial menu for my wacom tablet, or when I deleted Photoshop CC, when I realized that I had both PS CC, and PS CC 2014 on my system.  Would appreciate guidance to make necessary corrections, so files open in PS.