Maybe I didn't search right, but does Simulation have log files for runs? 

I have a run that worked fine the other day, but today fails with no error messages. 

Then it failed saying there were no applied loads (there were, and nothing I did would change the "!" in the assembly tree afterwards, so I had to kill SW)

I deleted all of the contact areas, put in bonded assembly contact, and remeshed/reran, and several minutes in, there's no progress, then I got "STOP: Error in opening the ID array file (*.IDA)." and another failure.   

I just got the "no loads are applied to the model" error again.

I have restarted SW several times.  

Removed split lines and reran.  "Now getting PRE1 program not completed successfully."

Anyone know what the heck is going on?