Off topic, but you might want to review your advancedsettings.xml file a bit. On a quick glance I noticed you had <displayremotecodes> which was only used on an actual XBOX and I’ve seen setting <recentlyaddeditems> to a large number like you have cause problems. I also don’t think <moviesetextraart> is valid anymore.
As for the problem at hand I would try a system mount.