May read "something between the lines" here?
On the 12th of June it (49th Indiana) marched with General Morgan's forces toward Cumberland Gap, and on the 18th it occupied the Gap, the rebels having evacuated it the same day. The 49th proceeded to add to the strength of the already well-fortified position.
In the month of August the rebel General Kirby Smith, with a strong force, came through the mountains and succeeded in cutting off supplies and all communications in the Gap. At the same time supplies were already low in Cumberland Gap, and the men were in need of clothing.
The regiment remained at Cumberland Gap until the night of the 17th of September, when General Morgan, whose army the 49th was part of, abandoned the works and started it's retreat with General Morgan leading them through Eastern Kentucky to the Ohio River. During the march, the troops subsisted mostly on green corn. After a march of sixteen days, the regiment reached Greenupsburg, Kentucky, on the 3rd of October, from whence it moved to Oak Hill, Ohio.
Going into camp at Oak Hill, Colonel John W Ray met up with the regiment, having been on detached service, and tendered his resignation on October 17, 1862. He was succeeded by James Keigwin, who continued as it's colonel until the close of the war.
Maybe the incident cost Ray his Colonelcy? Hence it was never reported.