I faced with an issue. I make two virtual desktops and now if I for example try to adjust the sound volume using a mouse wheel on the volume icon in the system tray the desktops are switching. Moreover they are switching on the wheel event in all area of the system tray.
Any ideas?..

You plasma etc. version ?

With the 5.8.4: Bug 372957 - Scrolling in system tray switches desktop - https://bugs.kde.org/show_bug.cgi?id=372957

Plasma schedules: https://community.kde.org/Schedules/Plasma_5

5.8.5 LTS Bugfix Tue 2016-12-27 Bug fixes and new translations only from Plasma/5.8 branch

Rog131 wrote:You plasma etc. version ?

5.8.4...

... and meanwhile the fix :

https://bugs.kde.org/show_bug.cgi?id=372957#c6
--> https://phabricator.kde.org/R120:d1ea67 ... 533267292f
-----> https://phabricator.kde.org/R120:d1ea67 ... f#9b4946c0

to the /usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/main.qml