Minor bug/problem: the chain uses the unof 14696 part which is included in the mpd. But only the generated LDraw lines have been corrected (probably by mpdcenter) for this, so when the chain is regenerated it will once again use 14696 instead of 42036 - 14696 for the links resulting in a missing part.
You also need to correct the "donPart=14696.dat" part of the PATH_SKIN line using e.g. notepad or the skin properties dialog.
You also need to correct the "donPart=14696.dat" part of the PATH_SKIN line using e.g. notepad or the skin properties dialog.