In order to recognize the cross-sections during the direct import of beams and columns in REVIT, the corresponding family must be available for such components in the REVIT project.
If this is not the case, you can import the suitable family into your project during the import process. The interface then recognizes all other cross-sections itself and creates the corresponding cross-sections within the family.
In Image 01, a timber column 480/520 (mm) has not been found. After importing the correct family type, this cross-section and all other cross-sections of the same type are recognized and the import process is successfully completed.