Are you running this with people on the system? I tend to make sure when Finance runs ANY SM-J program they get everyone out of Evo.  It could be a file locking or other issue that's making it loop. Even if running in report only mode.
 
Also, have you ever purged your WO file?  If it's particularly large, it may take a while.    
 
The initial screen does indeed indicate this is an extensive process and can take a long time to run.....
 
Val

I'd bounce out of it and call ISTech or email them directly about it.  You have a different version that what we are running.
 
Val