Exactly, what are you trying to accomplish?  I see a LF2 sweater and the LF2 to LF1 Prefitter prop.  It appears that you want to fit the sweater to LF1.  Technically, you cannot run a simulation using 2 props.  Use the prefitter to copy the morphs to the sweater, replace the Prefitter prop with the LF1 Figure, then setup and run the simulation.