Did you recently upgrade your deployment share from MDT 2010 to MDT 2012? That's the only thing I can think of here. If so, then something went wrong, and you should go over *EVERY SINGLE FILE* with a fine tooth comb to find any files that are out of sync.
Otherwise wipe your existing MDT share, and start over from scratch.
MDT writes the final status in LTICleanup.wsf to the %temp%\results.xml file, the summary screen then picks up that file for reporting. They question is why is this file missing?
Keith Garner - keithga.wordpress.com