I'm running Mac OS 11.4 on a Late 2013 Mac Pro 3.5 ghz 6-core intel xeon e5, 32 gb 1866 MHz DDR3, with an AMD FirePro D700 6 GB gfx card. The installer apps won't run on my system. I have run the adobe cleaner and cleared everything from the system, and tried multiple downloads, and individual app installers. When opened, the installers pop up a window for less than a second, then disappear and don't do anything. No error messages. I got on with support and ran a dirct.dmg file for photoshop, and it failed with an unknown error. I need help. This is making my work very difficult.