STEPS TO REPRODUCE 1. open the following link with Firefox https://wallpaperaccess.com/full/112752.jpg 2. drag the wallpaper and drop it on desktop 3. click on "Set image" option of the context menu 4.. right click on wallpaper, select "Configure desktop..." OBSERVED RESULT current wallpaper is not highlighted with blue border EXPECTED RESULT current wallpaper is highlighted with blue border SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.17.90 KDE Frameworks Version: 5.66.0 Qt Version: 5.14.0 ADDITIONAL INFORMATION This issue does not occur when the wallpaper is dragged from Dolphin.
fixed on Plasma 5.18. :)