I have KDE 4.14.2 on Debian 8.1 installed. When I have 3 layouts, switching META+Spacebar works perfectly. The problem begins when I am adding 4th layout, switching works incorrectly: I'm only able to switch from 1st->2nd layout, when I click switch layout shortcut in other cases (2,3,4) it does not work at all, so that 2->3, 3->4, 4->1 do not work at all.
I found some workaround to this: I have checked spare layouts option, so now I am able to switch between the most usable 3 layouts. But anyways I use 4. I couldn't find any solution of this on the internet. How to fix this?