Premiere Elements 2024 UI Preference won't switch to dark mode

In Adobe Premiere Elements 2024, I go to Edit-Preferences-General-UI Mode-Dark to try to change the UI from Light to Dark.  I receive the message that I need to relaunch the application and I close out the application and the home screen and reopen.  The UI keeps showing in Light Mode.  I also tried using the 'Sun' icon but it still won't change to Dark Mode.   Any ideas as to how to get the preference to stick?