Hey @joni0808,
Thank you for reaching out to us for assistance! In this case, it looks like it is a general page caching issue. If you visit a page with with an extra query (going around caching), such as https://traktorock.hu/?no_cache#galeria, an updated feed shows. Please test clearing your website cache manually to begin with. Going forward, you can adjust the settings of the cache in your caching plugin (or through your host), to lower the TTL (Time-To-Live) or Cache Timeout options. In some cases, these are set to as long as weeks or longer. We suggest lowering the cache to something that better fits the update needs for your website.
If you have any other thoughts or questions, let me know as I am happy to assist.
Best regards,
Joel