Simplepie cache not updating
Now you have the way to fix Word Press Feed Burner feeds not updating.
In order to speed up web browsing, web browsers are designed to download web pages and store them locally on your computer's hard drive in an area called "cache".
Click on it and then uncheck the box that reads “Cache feeds: site, categories, tags, comments”.
This will prevent your plugin’s cache from backing up and not allowing Feedburner to display new content.
This will bring you to a page where you can type in your blog’s URL. Again in forums, folks suggested that this worked for them.In the past we have shown you how to setup Feed Burner for your Word Press site.Recently we had an issue here at WPBeginner where our Feedburner feed was not updating.Also note that Feed Burner will not process an original feed over 512kb.
If you find yourself into this problem a lot (or notice the solutions in this article aren’t working), reduce the number of posts displayed in your Word Press feeds by going to Settings » Reading page.
Please read this article to see why you shouldn’t use Feed Burner and find out about the alternatives.