After some more troubleshooting:
If I render the part (168285a.dat) without it being an MPD, it renders without error. The seg fault only happens with the MPD and happens regardless of whether or not the DATA file is present.
If I render the part (168285a.dat) without it being an MPD, it renders without error. The seg fault only happens with the MPD and happens regardless of whether or not the DATA file is present.