I am working on a vibration simulation and to simplify the study i have shelled out some of the parts and then defined a thickness within shell manager. Due to the shelling i now have multiple bodies within a couple of the parts. When running an initial modal analysis to determine natural frequencies the modal shapes appear to show that the bodies are not connected. I have global bonding switched on, pinned connectors in the appropriate places and manually been through to establish contact sets. Am i missing something? Please see attached snapshot of one of the modal shapes for reference.