If the Distilling starts, and ends with something like
PostScript Errror or PostScript flushed, then the original
PM file contains doubtful elements. Mainly these are
graphic files. One rare exception is this: don´t use blue
text RGB=0,0,255 (believe it or not).
A test with a simple file (some text, some color boxes) will
immediately show, whether the workflow is OK in principle.
The erroneous file can be tested then page by page, or by
sequential division in half of the pages, if there are many,
until the offending page is found.
Fonts should be always embedded.
The basic fonts Helvetica,Times, Courier are nevertheless
not embedded, because the Reader is expected to have these
(I read this, but didn´t test, I embed always all fonts).
Hope this helps. --Gernot