asdoc | Nested Regression , column title using cnames

Hi, I am having trouble showing the column name using the cnames option in asdoc.

bys katrinacounty: asdoc reg $ylist $xlist i.year, vce(cluster county), ///
 replace se(below) label stars nest title(Table 5. OLS Regression Results) ///
add(These tables were created with asdoc program, written by Shah (2018)) ///
cname(Outside Affected Area, Inside Affected Area)

The resulting table does not have the cnamesadded. katrinacounty is a dummy variable with 0 signifying that counties are outside the impacted area and 1 denoting a FEMA Designated Area.