[Plugin: WPtouch] Category pages that should have posts returning 404

I have wptouch-pro version 2.2.4 installed right now. The index page and single posts seem to be working great, but if I go to a category page that on the desktop has a ton of posts, the mobile version will always return a 404. So far, the only posts I see of people having similar problems are people whose categories have no posts.

Any help would be greatly appreciated. Thanks!

http://wordpress.org/extend/plugins/wptouch/