for a while I now encounter missing panels after starting Mate 16.04.
So far I opened a terminal (CTRL+ALT+T) and just typed ‘reboot’ and 1 out of 3 times I could see my panel working again as usual.
As far I could say, panel seems to be there, no matter that I can’t see it. Icons and plank are there and space for ‘missing’ panel seems to get reserved.
Any idea or suggestion? At least I’d like to get a terminal order to just restart or refresh the panel to show up correctly.