Well, those "orphaned" resources are probably still in the database. You could check the database with a query to see what items in the site_content table have a parent of your Articles container resource.
Funnily enough, this just happened to me. I changed a tinyMCE param and then an Articles container disappeared! Glad I wasn't working live!
MAMP/OS X 10.8.2
This just happened to me as well.
It's been working fine for months and all of a sudden the posts stopped displaying in the manager.
I actually have 2 instances of Articles running on my site and one is working just fine and the other has the issues. Anyone have a suggestion? Haven't changed anything in the site other than my css and templates. No changes to add-ons.
Revo 2.2.5 running on ModxCloud beta.
Try deleting all the core/cache/ folders; this is awkward to do via sftp so the ssh shell command line is better.
I did it via sftp but no luck.
When I change the "Per Page" setting at the bottom of the articles manager from 20 to 10, the area refreshes and my posts show up. I can change the number to anything under 19 and it seems to load the posts but if I click to view page 2 of the posts, the listing endlessly refreshes without updating the results.
I just had this happen after adding the following lines to .htaccess in the assets folder based on a recommendation in another post about hardening your site:
Deny from all
Removing them brought the articles back.