KDE5 Virtual desktop problem when using desktop grid

[davidbrooke]

My current setup:
Gentoo ~amd64
KDE Apps 15.04.3
KDE Frameworks 5.11.0
KDE Plasma 5 5.3.2
CI7-4770 and CI7-4790
4600 HD
8 GB ram
Virtual desktops = 2x4
Desktop effects>Desktop Grid = Zoom duration = default, Border width = 0, Desktop name alignment = disabled, Layout mode = pager, Use present windows effects to layout the windows = not checked. Trigger = upper left hand corner of screen
Desktop Layout = Folder View, Wallpaper Type = Slideshow, Change every 30 seconds, Folder = /usr/share/wallpapers

Problem:
When I execute the Desktop Grid and the four desktops are displayed, a small rectanglar box, located in the lower right hand section of each desktop, is displayed. This small rectanglar box is of the last desktop and the current information located in that position. As the Folder View slideshow changes, the small rectanglar box will continue to be displayed and not over written. I can select another desktop and select desktop grid again and the last desktop before desktop grid is selected will be the info that is displayed in the small rectanglar box

The photo shows the four virtual desktops using the desktop grid effect. A white arrow is used in the top left desktop to indicate the small rectanglar box issue.
http://imgur.com/MLVpRy6

[davidbrooke]

There is a filed bug on this issue which still working.

https://forum.kde.org/viewtopic.php?f=289&t=127172
https://bugs.kde.org/show_bug.cgi?id=348577