Thanks for the reply but unfortunately the Mate desktop still crashes. I also tried exporting from different tabs Page, Drawing and Selection without success.
I have tried the appimage in versions 1.0.2, 1.1.1 and 1.1.2. I also added the official Inkscape PPA and installed v1.1.2 from the PPA deb but the desktop still crashed and restarted. All of these versions do work in my Ubuntu Mate 20.04 system without a problem.
With the deb version installed I was able to run the command in terminal and tried to output the error stderr output to file, below is the recorded output before the crash if it helps anyone. Thanks again for the time and help.
Shortcut::read: invalid verb: DialogSpellcheck
/home//Pictures/General/Icons/Cloud Drives/MS_OneDrive_Mnt.svg:27: namespace error : xmlns:ns0: '&ns_sfw;' is not a valid URI
xmlns:ns0="&#38;#38;#38;#38;#38;#38;ns_sfw;"><sodipodi:namedview
^
WARNING: unknown type: ns0:sfw
WARNING: unknown type: ns0:sfw
From Apport.log
ERROR: apport (pid 18929) Fri May 6 06:09:50 2022: called for pid 17261, signal 6, core limit 18446744073709551615, dump mode 1
ERROR: apport (pid 18929) Fri May 6 06:09:50 2022: ignoring implausibly big core limit, treating as unlimited
ERROR: apport (pid 18929) Fri May 6 06:09:50 2022: executable: /usr/lib/xorg/Xorg (command line "/usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch")
ERROR: apport (pid 18929) Fri May 6 06:09:50 2022: is_closing_session(): no DBUS_SESSION_BUS_ADDRESS in environment
ERROR: apport (pid 18929) Fri May 6 06:09:51 2022: writing core dump to core._usr_lib_xorg_Xorg.0.ee5625f5-e575-48e8-a43d-f5b5dfc989e8.17261.284199 (limit: -1)
ERROR: apport (pid 18929) Fri May 6 06:09:54 2022: this executable already crashed 2 times, ignoring
Sys.log
May 6 06:09:16 charlesb-emachines-D525 org.mate.panel.applet.BriskMenuFactory[18858]: Shortcut::read: invalid verb: DialogSpellcheck
May 6 06:09:20 charlesb-emachines-D525 org.mate.panel.applet.BriskMenuFactory[18858]: /home/charlesb/Pictures/General/Icons/Cloud Drives/MS_OneDrive_Mnt.svg:27: namespace error : xmlns:ns0: '&#38;#38;#38;#38;#38;#38;#38;ns_sfw;' is not a valid URI
May 6 06:09:20 charlesb-emachines-D525 org.mate.panel.applet.BriskMenuFactory[18858]: xmlns:ns0="&#38;#38;#38;#38;#38;#38;#38;ns_sfw;"><sodipodi:namedview
May 6 06:09:20 charlesb-emachines-D525 org.mate.panel.applet.BriskMenuFactory[18858]: ^
May 6 06:09:20 charlesb-emachines-D525 org.mate.panel.applet.BriskMenuFactory[18858]: WARNING: unknown type: ns0:sfw
May 6 06:09:54 charlesb-emachines-D525 systemd[1390]: xdg-desktop-portal-gtk.service: Main process exited, code=exited, status=1/FAILURE
May 6 06:09:55 charlesb-emachines-D525 at-spi-bus-launcher[17886]: X connection to :0 broken (explicit kill or server shutdown).
May 6 06:09:55 charlesb-emachines-D525 systemd[1390]: xdg-desktop-portal-gtk.service: Failed with result 'exit-code'.
May 6 06:09:55 charlesb-emachines-D525 dbus-daemon[1411]: [session uid=1000 pid=1411] Activating via systemd: service name='org.freedesktop.impl.portal.desktop.gtk' unit='xdg-desktop-portal-gtk.service' requested by ':1.55' (uid=1000 pid=2086 comm="/usr/libexec/xdg-desktop-portal " label="unconfined")
May 6 06:09:55 charlesb-emachines-D525 pulseaudio[1401]: X11 I/O error handler called
May 6 06:09:55 charlesb-emachines-D525 pulseaudio[1401]: X11 I/O error exit handler called, preparing to tear down X11 modules
May 6 06:09:55 charlesb-emachines-D525 systemd[1390]: bamfdaemon.service: Main process exited, code=exited, status=1/FAILURE
May 6 06:09:55 charlesb-emachines-D525 systemd[1390]: bamfdaemon.service: Failed with result 'exit-code'.
May 6 06:09:55 charlesb-emachines-D525 systemd[1390]: bamfdaemon.service: Scheduled restart job, restart counter is at 1.
May 6 06:09:55 charlesb-emachines-D525 systemd[1390]: Stopped BAMF Application Matcher Framework.
May 6 06:09:55 charlesb-emachines-D525 systemd[1390]: Starting BAMF Application Matcher Framework...
May 6 06:09:55 charlesb-emachines-D525 systemd[1390]: Starting Portal service (GTK/GNOME implementation)...