STEPS TO REPRODUCE 1. open system settings > Startup and shutdown 2. click on "Get new login screens..." button 3. install some SDDM themes 4. reopen system settings > Startup and shutdown 5. click on "Get new login screens..." button 6. select "Installed" radio button OBSERVED RESULT as we can see in the attached screenshot, SDDM themes installed from kde store are not listed while "Installed" radio button is selected. EXPECTED RESULT all SDDM themes installed from kde store should be listed while "Installed" radio button is selected SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.17.3 KDE Frameworks Version: 5.64.0 Qt Version: 5.13.2 ADDITIONAL INFORMATION my screenshot shows breeze cover, crown blue, harmony-v2, maya and chili for plasma SDDM themes installed from kde store.
Created attachment 124138 [details] screenshot
*** This bug has been marked as a duplicate of bug 414570 ***