Created attachment 63628 [details] snapshot Version: unspecified (using KDE 4.7.1) OS: Linux Ever since I upgraded to kde 4.7 I get random empty spaces in the taskbar, as shown in the screenshot. I hoped 4.7.1 fixed this, but I keep getting them. If I try grabbing a minimised window I can move it over the empty area, which in turns moves over as well, but I can't grab the empty area. It doesn't occur in every virtual desktop, and is not the result of a closed window, in fact the empty areas appear randomly right after start up. I'd be glad to help with more info, if needed. Thanks. Reproducible: Always Steps to Reproduce: . Expected Results: .
I have finally managed to find a way to consistently reproduce this annoying bug.(hopefully) Have the task manager set to show only windows from current desktop and set the option to switch desktop by moving the windows to the border. Then open a window on a desktop and while holding it move it to a different desktop and back again. Then close it. The desktop that it visited will have a empty space in the task manager. This also seems to screw with the number of rows that the task manager shows as after doing this the task manager on the second desktop will start to show 3 rows even though I set it to always show 2 rows.
Here is discussion on this bug: https://bugs.kde.org/show_bug.cgi?id=278891
*** This bug has been marked as a duplicate of bug 277010 ***