The ISO 13400 document has been revised to include additional features etc. This revision is normally documented with a colon like this "ISO 13400-2:2010" or "ISO 13400-2:2012"
ADCS 18.0 and earlier only support ISO 13400-2:2010
ADCS 18.5 introduces support for ISO 13400-2:2012.
In your case, your ECU must be using ISO 13400-2:2012, so the solution to this problem is to use
ADCS 18.5 .