[Lastmod] [Lastmod] Sitemap not updating properly

Hello @alexg9,

Thank you for contacting Rank Math support.

Can you please follow these steps?
1. Flush the Sitemap cache by following this video screencast:
https://i.rankmath.com/pipRDp

2. Exclude the Sitemap files of the Rank Math plugin in your caching plugin. The cache could be via a plugin or from the server. For plugins or Cloudflare, please follow this article:
https://rankmath.com/kb/exclude-sitemaps-from-caching/

That should fix the issue.

Please let us know if that does not. We are here to assist.

Hey there,

I’ve done the first step and added the rule to the .htaccess file, but I’m not using any of those caching plugins. I’m using FlyingPress, so I don’t know what you want me to do because the instructions vary depending on the caching plugin.

Hello @alexg9,

Here’s what FlyingPress offers to exclude XML files from caching:
https://docs.flyingpress.com/en/article/exclude-pages-from-caching-1pti1qd/

Also, please exclude your sitemap from Transient Cache by adding this filter:
https://rankmath.com/kb/exclude-sitemaps-from-caching/#transient-cache

Moreover, you may get in touch with FlyingPress to assist you in excluding your XML Sitemap URLs.

Hope that helps.