Hi dear KDE fans!
I could ask a question about KDE 4.14.2.
The bug appears after suspend/hibernate: please see screenshot, it is displayed my desktop after suspend/hibernate. desktop context menu is unavailable; rubbish instead of wallpaper.
This bug appears on several but not on all desktops. If decrease (using SystemSettings) virtual desktops amount and then restore previous value of them, desktops appear as they should.

Jessie 8.4, NVIDIA Driver Version: 352.79, KDE v. 4.14
http://s33.postimg.org/ulnj0ofan/after_suspend.png

Thank you in advance.