Hi
Oke, If you model the 3d welds in SolidEdge or in DS there should be no problem, Workbench will import them.
Spot weld in WB is way off letting WB know that at that lokation the must be nodes.
If you model a wled in Solid Edge is it Geometrically generated or is it just grafically?
You have to model the welds 3d in Solid Edge en import them to WB.
Garry