I have anothers problems (the mate-volume-control-applet stop working and the multimedia keys stop working).
So I create a little script to restart several part of mate.
I hope this helps.
#!/bin/bash
mate-settings-daemon --replace &
mate-panel --replace &
marco --no-composite --replace &
killall mate-volume-control-applet
killall caja
mate-volume-control-applet &
killall compton
compton &