RSS feed stops on particular post

Got a notice that the rss feed hasn’t updated since June 14th – even though there are weekly posts after that date.

disabled plugins, changed theme, not love.

went to feedburner and did some troubleshooting and feed validates, yet only lists up to specific post then stops.

I reset last fed post and one after that to draft and still not passing by them to list most current.

http://nomtbf.com

Any suggestions on how to get the feed working and up to date again?

thanks,

Fred