Restraints Failed to Transfer Error

Hi, I am running SW2008 with CosmosWorks Professional. I wasable to analyze an engine stand weldment yesterday but afterplating was added to the top I am getting an error, "The Restraint- Restraint1 Failded to Transfer." Cosmos then tries to analyze theweldment but comes up with this error: "2Preconditioner_Fails_To_Factor. May not have sufficientrestraints." I have tried different restraints but I keep gettingthis same error. Can anyone shed insight on this?

Thanks,
MikeSolidworksSimulation