You said you have nodes without geometries, maybe it is because of missing reference.
In the log you provided in the other thread I can see there are several “Warning: file not found” in the log file.
You could remove them with a python or utility blueprint.
Something like: for all selected actors, if actor does not have static mesh component and not attached actors then remove it.
Techsoft library is what UE uses to load the solidworks files. So you are already using it.
Then the tessellation can be done with UE CADKernel (default) or Techsoft Tessellation. By default we activate CADKernel that provided some benefits but lately we accumulated some debt on it due to refactoring.
Basically just type this command in the console, c.f. screenshot, before you start your CAD import.
