I am trying to add an RSS feed to my website embeetle.com. I am doing this "the hard way" by manually creating an XML file for the RSS feed. You can find it here: https://embeetle.com/rss.xml. The file has been validated using the W3 feed validator at https://validator.w3.org/feed/check.cgi?url=embeetle.com
The problem I have is that the RSS readers I tried are not displaying the most recent content of my RSS feed. I tried Feedly, Inoreader and NewsBlur. All of them are showing older versions of the feed, as if these are cached somewhere, and the cache is not updating (I waited 24 hours to make sure).
I guess I am doing something wrong here, but I have no clue what. I have been trying to find hints searching the web for hours. Any hints are welcome.
If you want to check: there should be two posts in the feed, one announcing our new RSS feed and one announcing the latest version of Embeetle. In the readers, I get only the second post, sometimes with out-of-date content.