Adobe sold Photoshop Elements 2019 as 64-bit software, so all buyers were cheated! Three parts of the software are 32 bit and prevent proper operation. I have upgraded to Catalina and then put everything from Adobe in the trash except the "Adobe Photoshop Elements 2019" folder which contains the "Support Files" and "Adobe Photoshop Elements 2019.app" subfolders. When starting the editor you will see the error message "Your application install seems to be damaged, Please reinstall the application." Click OK and Photoshop Editor works!