Desktop switch broken when click on app from another desktop in task bar

[Yuri Gor]

Hi all
After recent kubuntu 18,04 update auto switch desktop doesn't work.
I have 2x2 desktops with 3D cube animation effect enabled.
Before update when I clicked on app in task bar, if this app is not opened in current desktop, automatic switch used to happen.
Now on such click nothing happens.
Is it a bug or some setting was overwritten in the settings after update? Found nothing related to this behavior in the settings, plz help.

[Yuri Gor]

I turned 3D Cube effect off, now switching works, but no effect is available, Neither 3D Cube, nor slide or fade. Desktops switches just instantly, no matter wat setting did I choose

[Rod J]

It sounds like the desktop effects have been disabled. Try re-enabling them with Alt + Shift + F12. This shortcut toggles desktop effects on/off.

I have had trouble with desktop effects on an earlier version of Kubuntu. I could not get the effects to work at all and eventually traced it to my experimenting with the blur settings by making the blur value too high and it apparently caused Kwin to malfunction. Maybe something similar you have done? Although, as you say it was working OK prior to a recent update.

I'm running K18.04 fully updated here and haven't noticed any problem with the effects.