Steps to reproduce: 1. Select a background image 2. Click OK (preferably with the keyboard to do it fast) while the new image is fading in. Actual results: Background is now black. Expected results: The new image is the background. Happens every time fading works (there's another bug report about that).
Fixed steps to reproduce: 1. Select a background image 2. Click Apply 3. Click OK while the new image is fading in
4.10.2 still valid. Please fix.
Tried look at code... and it just after killall plasma-desktop && plasma-desktop& disabled someway fading effect and then it survive "Apply" and then "OK". Anyway this problem exist somewhere from 4.0 maybe ;-) at least from 4.7 sure.
I faced the bug and steps mentioned do indeed reproduce the bug.
*** This bug has been marked as a duplicate of bug 300708 ***