I just did a system upgrade this morning and when it finished the usual box came up with 'exiting now', so i clicked 'ok'. Then i tried to reboot and shutdown. Both were unresponsive. I did a hard reset, restarted and it only takes me to the SparkyLinux Tyche login. I tried 'exec startlxqt' and it comes straight back to the terminal. If i power down from here i do get the Sparkylinux splash screen, with the figure8 animation, before it shuts down. Any ideas what happened and how to recover?