buggy_ubuntu_19.04_suspend_shutdown_fix

bug
Ubuntu  Studio 19.04

Hi I'm currently having interment issues when I attempt to put my Ubuntu Studio 19.04 machine
into suspend or shutdown from time to time, doesn't always happen but I can only guess that.
Not completely certain but I seem to be an issue with xfwm4 and systemd-sleep. The following CLI commands help me sort out the issue.

Post the error message in here when it happens again.

...$ sudo killall systemd-sleep

...$ $xfwm4 --replace