Right now I have isolated the issue to be hanging consistently at the same spot.
When I re-run the add roms wizard for NES games it scans through and gets to S where it finds was the last place it hung up. It tries to download Big Box Cinematic Video Theme while importing Super Mario Bros. (Japan, USA).nes
I am going to attempt to remove that rom temporarily and see if it progresses. When I hit cancel the program hangs and does not offer me to save the currently scanned media. Forced to close software.