Issues with Short Codes

The blog I administer has multiple contributors that we use categories to distinguish the author. Each contributor has a bio page that I use the short codes to display their posts. I have several instances of the short code not displaying all of the category’s posts. The older posts are there, but not the newer ones. An example is:

http://www.theconservativepundit.net/meet-the-pundits/dr-richard-amerling-md/

There should be several newer posts, as can be seen if you look at the feed with this link:

http://www.theconservativepundit.net/?feed=rss2&cat=5

Any suggestions are welcome!

Thanks,
Mike

https://ww.wp.xz.cn/plugins/wp-rss-multi-importer/