Military Monday: Charles Eckles & War of 1812

I'm still not clear on the role of Charles Eckles (Eccles) in the War of 1812. He has a Compiled Military Service Record (CMSR) for the war, but it only indicates that he had a substitute named Daniel Nape. There is just one card, a muster roll on 8 Feb. 1815, in the file for Charles. He was listed as a private in the 17th Regiment (Francesco's) of Kentucky Militia. The file also identifies the unit as "Capt. Stephen Ritchey's Co. of Infantry, 17th Regiment Kentucky Drafted Militia." Here is the complete file sent from the National Archives:

Daniel Nape and not Charles Eckles appears in the list of soldiers in the book of Kentucky units. (Kentucky Adjutant General's Office. Report of the Adjutant General of the State of Kentucky: Soldiers of the War of 1812. Frankfort, KY: E. Polk Johnson, 1891.) This seems to mean that Charles never served, but then why does he have a CMSR?