Yeah, that's the problem: you must insert the aprox. parameters (X, Y, Z) of the center of the SW in the Pivot Point section. You have to open the SW 3D file with 3DSimed, look for the center point (if exists), then click left on the point to select it, then right-click and Edit Point to open the box and visualize the parameters of the X, Y, Z axis. Then, export the 3D file and in the exporting box insert those parameters in the Pivot Point section for each axis.
Ferrari ... F1's soul since 1950