Upgrade to Rapidweaver 7 from 6 and can't save old project files

I just upgraded to Rapidweaver 7 from 6 and when I open my old project it saves a rw file instead of a rw6, but when I open the rw and try and save any changes, I just get a beachball spinning that never ends. I let it go all last night and it is still spinning this morning.

I have restarted 4 times, I have trashed the com.realmacsoftware.rapidweaver.plist file as well. I am getting no change.

I am running Sierra 10.12.1 and RapidWeaver 7.1.7