DWG won't open in 2017, but will in 2015

I am having an issue with some of our large drawings (14mb) not opening in the new 2017 DraftSight. It will attempt to open but then all I get is the NONAME_0.dwg. This same drawing opens fine in 2015. I can view other dwg's in the 2017 version without issue.

Sometimes the attached will show in the command line.

What am I missing? Any help would be appreciated.