LEAP Steel- Notional Rating Load

Hello, I am developing a load rating of a curved bridge in LEAP Steel (V20.00.00.41). I have been able to run all of my required vehicles except for the Notional Rating Load (NRL).  When I run the NRL combination alone, the program hard crashes.  With other loads before it, the program runs unit it reaches the NRL combination and then crashes.  The hard crash happens for all analysis types (line, grillage, and FEA) and in straight or curved bridges. I have attached screenshots of my load combinations and NRL vehicle.   Is there a work around for this?