Yes, I should have more correctly stated that 10.3 require a version of Mac OS above Yosemite. Aperture has most of the same glitches under El Cap as it has under Sierra. I'm sticking with Yosemite.
Mark
I can't install Final Cut Pro 10.3 because it require Sierra. I can't install Sierra because it has issues with Aperture. I will NOT give up a properly functioning Aperture so I'm staying with Yosemite for the foreseeable future.
I despise Apple for dropping support for Aperture. I'm not...