Are you using Sitefinity feeds and notifications module to include the exernal Rss Feed in your site? By default Sitefinity rss feed doesn`t update automatically. If the feed upon update takes all content and if there is already an exising one published it updates it by preserving the old content and saving the new one as draft. Can you provide some more information on the how your feed is set up and if there are any modifications on it?
the Telerik team
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