I have been Using PSE 2018 for a while. It started to crash my Mac recently. I had to run repairs, but apple told me to remove elemnets and re-install. I did that, reinatalled Mojave but of course I don't have the original disc and I can't download it.
I figured I would try the newest version - I downloaded a free trial for Mac, but when I click to open up editor, it won't open. No message or anything. I have not upgraded to Catalina yet especially after reading that people are having issues with PSE 2020 and the new OS. I am just out of luck now? I don't want to use creative cloud and pay a monthly fee.