Helix CAD to Revit: Walls only map to Level 1

Running into issue with Helix when CAD of existing floorplan is linked to Level 2 or above. Helix only maps the Walls and associated Doors to Level 1 even when changing settings of parameters. Walls and Doors on Level 1 are in correct location matching CAD on Level 2, only the level is wrong. The other strange thing is that Columns included in the same Helix run correctly map on Level 2 as intended. Could there be something with the linking of CAD file that needs to be changed? Thanks

Is it possible to share over the Project and DWG files? If you can send them in a private message to me.