Hi there. I´ve been using Ubuntu Mate for a couple of weeks now and so far it was amazing OS. I upgraded from 15.04 to 15.10 without any issues and it was supper smooth until today. During my daily work I opened PDF with Atril, then the whole desktop crashed showing only my wallpaper, when it came back I couldnt click on anything and in the bottom panel I saw multiple instances of Caja trying to do something. When I fallback to console it was periodically listing segfaults for Caja (error 6 in libc). I rebooted the computer and after login I could see only my wallpaper, no icons or panels whatsoever. I logged in into the guest account which worked fine. I thought … maybe something got corrupted in my profile, so I deleted the dconf settings and tried to set things back they used to. Only to run into this error again… and again, like dozen times already. It happens when I switch from Marco to Compiz. It happens when I change theme from Ambiance to Yuyo Dark. Oh yeah and I made sure it is not a profile issue. I performed a clean installation of 15.10 Wily only to run into this bug again. Plus everytime I want to edit anything in control panel and the password dialog shows up - I cannot write the password in, because it freezes once I hit the keyboard.
I need some serious help with this, because I´m at my wits ends. It was so stable before, and my work is piling up. Thanks for any help.