Authentic theme 18.31 CSF ui issue

Today i installed Virtualmin through installer script . it installed authentic theme 18.31 . I also installed csf . in csf UI there are no out put of csf.conf file at all. it is completely missing from UI . To check i have also unrestricted UI from csf.cong and still this is not appearing in UI . I am ok to change directly into csf.conf file . Just curious why this is not working as expectedly in virtualmin ( webmin) with Authentic theme