I've been trying to problem solve this for days now and am now turning for help here.
Basically, I used "Post Duplicator" plugin in the midst of putting a lot of posts/resources on my website. But after putting them all up I went to validate my different feeds and the hurdle in the way of validating is url's within <guid isPermaLink="false"></guid> that are from when I duplicated posts.
For instance, I might have duplicated the post http://www.danieltrainingnetwork.org/flee/ and the duplicate immediately gives it the url name http://www.danieltrainingnetwork.org/flee-2/. However, every time I duplicated I would obviously change the duplicate url link to what I wanted it to be and then published it. However, in the feed the duplicate url still remains within the <guid isPermaLink="false"></guid> tag. So within the <link> tag it will be the right url to the post but within the <guid> tag it is the url I duplicated off of.
So, within my different feeds there are times where two items have the same duplicate link within the <guid isPermaLink="false"></guid> tag. For instance, <guid isPermaLink="false">http://www.danieltrainingnetwork.org/flee-2</guid> might be with two different items within my feed thus causing the feed to not validate.
Now I have went into the cache file within my cache folder on the server side and made the duplicate guid tags different. It then validates the feed until I do any editing on any of the posts within that feed and walaa, the feed goes back to the way it was before.
My question is: How do I PERMANENTLY change the duplicate links in the guid tags. I know how to temporarily change them in the cache folder of my Host Gator account in order to validate but then it quickly reverts to it's old self.