** ERROR 220120 ** No connection between beam and tetrahedral cavity elements. Check the mesh for coincident nodes.
The 3D Fill+Pack analysis can use both beam elements to represent the feed system, and tetrahedral elements to represent the part cavity. The feed system mesh must be connected to the part cavity mesh by sharing a node at the point of contact. If the meshes appear to be joined, it may be that the tetrahedral mesh and beam element mesh are using different nodes which are coincident. This may happen if a beam element mesh has been imported into the study file after meshing the tetrahedral cavity.