Unable to select Contact Prints II in Elements 15
I have recently purchased Elements 15 for MAC Sierra 10.12.6. When I first used Elements 15 I was able to select "Contact sheet II" and this worked on one occasion.
The advice I received was (Go to Library/Preferences/Plugins/Adobe Contact sheet 11 PSE 12/Elements, THEN delete "Adobe Contact Sheet PSE 12 Prefs").
I did this and the "Contact Sheet II" command worked OK , NOW it has happened again, but now I am unable to find and delete (Adobe Contact Sheet PSE 12 Prefs).
I had the same problem with Elements 11, so in the end purchased the present Version 12 and now the problem has returned. What are Adobe playing at ?