Snapheal extension not showing up in Photos under El Capitan
I just upgraded to El Capitan. I already had Snapheal Pro on my Mac but it does not appear to be available for use as an editing extension in Photos. When I go to System Preferences->Extensions, I do not see anything listed under my Photos extensions and instead see a note that Photo extensions are not enabled. Has anyone else had this problem with Snapheal, or any of the other MacPhun apps?
iMac, OS X El Capitan (10.11)