Folder Assign Not Working Today?

I've been creating pages and assigning them to folders over the past week and everything is peachy. But tonight the assign-to-folder function isn't working.

When I click to assign the page into a folder, it loads a blank page called /folder.php. But then nothing. The page never is assigned to the folder. This was working before. Why not now?

Is there a limit to the number of pages in a folder? This started at 47...

...edit...

OK, some new information. I've done more pages, and new pages are going into the folders correctly. However 7 pages are not. Can't figure out why. The folder they are going into has 50 pages in it now. Here are the seven pages, URLS, which will not folder correctly:

http://bridgewiki.pbwiki.com/Daily%20...
http://bridgewiki.pbwiki.com/2007+Coh...
http://bridgewiki.pbwiki.com/2007+Coh...
http://bridgewiki.pbwiki.com/Daily%20...
http://bridgewiki.pbwiki.com/Daily%20...
http://bridgewiki.pbwiki.com/Daily%20...
http://bridgewiki.pbwiki.com/Daily%20...
 
sad I’m sad
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