GLib-GIO:ERROR:../../../gio/gdbusconnection.c:4284:invoke_get_property_in_idle_cb: assertion failed: (error != NULL)
Bail out! GLib-GIO:ERROR:../../../gio/gdbusconnection.c:4284:invoke_get_property_in_idle_cb: assertion failed: (error != NULL)
Aborted (core dumped)

Please post the crash report so the Devs can fix this.

Try 3.22 there is a good chance this was fixed.  Something to do with the tray icons in linux.

3.22 has resolved the issue!