Long time Thematic user and developer here, but I am kind of stumped.
Have latest THematic version on an fully updated (WP 3.9 and current plugins) site where publishing a post always put it on the post index before. No child functions or CSS is interfering. But now, the posts will only appear if they are set to "sticky".
Is this a problem with newest WordPress versus 1-year old Thematic? Anyone else have the problem?