Restore Static Simulation?

I have an assembly that has multiple configurations, and static studies associated with them.

When recently opening this .sldasm I noticed that "study 2" was gone and only "study 1" and "study 3" remained.

I have .BD2, .BDF, .CWR, .LOG, & .SL3 extensions for all 3 studies, but "study 2" is no longer a tab in the .sldasm.

Can anything be done to restore this study?

I tried unchecking and rechecking the "load all studies" option in Simulation, but no change.

Thanks,

Steve

SolidworksSimulation