I have several flexible sub-assemblies within a top level assembly. Everyone of the flexible sub-assemblies are over defined and i am at a loss as to why. Also I have 4 different configurations of this top level assembly and several flexible sub-assemblies within those configurations. I cannot get the flexible sub-assemblies to manuever at all within the top level, not one single mate will fix. Can anyone tell me why this is so? Or, has anyone else experienced this problem? I can move the idividual pieces of the sub assembly after i make it flexible but none of them will mate to anything.