Hi Sergey and Christian,
I have successfully executed CMAQ/DDM v5.2 and CMAQ/DDM v5.4.0.3 and obtained satisfactory results. In my practices, other versions of CMAQ, including CMAQ 5.3.2 with the DDM-3D, do not appear to be fully functional.
CMAQ/DDM v5.4 exhibits significantly elevated higher-order sensitivities. However, these issues have been addressed and resolved in CMAQ v5.4.0.3, as seen here. I do not have the problem posted here in utilizing CMAQ v5.4.0.3 with DDM-3D.
Thanks.
Feng