I'm using the daily (2020-01-13) 64-bit Desktop image installed in virt-manager, configured with 2GB RAM, 20GB Disk, 4 CPUs. I installed 3rd party software at installation. Everything else is "vanilla" configuration.
- As soon as Ubuntu-MATE-Welcome launches system crashes and I am returned to the login screen. I uninstalled the snap package at a virtual terminal and restarted.
- Installed other snap packages (Skype and Gimp). They both launch without crashing.
- Pressing F1 at the desktop (to launch MATE desktop help) causes system crash and I am returned to the login screen.
- Launching Ubuntu MATE Guide from the menus causes system crash and I am returned to the login screen.
- Launching yelp from the terminal causes system crash and I am returned to the login screen.