When I have a programme window in "stick" mode across multiple desktops and I invoke the display of workspaces using the middle mouse button, clicking on one of the sticky entries on the workspace display results in loss of the XFCE desktop. I have to enter Xfce Settings Manager - desktop - and tick allow Xfce to manage desktop to restore the desktop. Note: Linux distro - Zenwalk.
Please get a gdb backtrace of the crash. See here for instructions: http://spuriousinterrupt.org/projects/xfce4-debug
I can't reproduce this, and reporter has not responded to request for further information. Recommend close as Invalid
Either it's fixed, or no one cares...