Click the Apple icon > System Preferences.
Editor does not start and freezes | Mac Mojave
Photoshop Elements Editor shows a spinning wheel (and freezes) on Mac Mojave. This issue is noticed when you launch the Editor.
Select Security & Privacy.
On the Security & Privacy dialog, select the Privacy tab.
Select Accessibility from the left pane.
Click the lock icon and enter your admin password to unlock it.
Click the plus (+) icon and then add Adobe Elements 2019 Organizer, Adobe Photoshop Elements 2019, and Adobe Photoshop Elements 2019 editor.
These applications are listed under the Application folder.Note:
The Adobe Photoshop Elements 2019 editor is available at the following location:
Application/Adobe Photoshop Elements 2019/Support Files/Adobe Photoshop Elements editor
Click the lock icon again to lock it.