I can't see how a morph set would affect AutoFit, though there have been a couple of characters that have usurped the compatibility base - so that things compatible with Genesis 8 whichever appear only when the specific character is selected - and something like that might very well interfere with AutoFit; if that was the issue then it shouldn't required a full reinstall, just the base Starter Essentials (and it would also have affected only one figure, not everything).