Thank you. Unfortuntly I cant control where my customers get their Ifc files from and i dont want to force them to use other applications to correct a mistake in SU. There is a workaround to import m correctly by using other applications, but this just seems to be a mistake in SU 2023. Previous version of SU import the same file without any problem.
Its not because of Ifc files made in older versions of revit. Files written bij the latest Revit version have the same problem