Hello,
We apologize for the issue you are facing with your latest blog posts not being added to the post sitemap. Thank you for providing detailed steps you’ve already taken; that helps us understand your situation better.
Here are a few additional steps you can take to troubleshoot this issue:
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Ensure Posts Are Set to Index: Make sure that your posts are set to index. You can check this by going to Rank Math SEO → Titles & Meta and ensuring the Index checkbox is enabled for your posts.

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Check for Custom Canonicals: If you have set custom canonical URLs for your posts, they may not appear in the sitemap. Ensure that you remove any custom canonicals if you want all posts to be included in the sitemap.
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Flush Permalinks: Sometimes, flushing permalinks can resolve issues with sitemaps. Go to Settings → Permalinks and click the “Save Changes” button without making any changes.

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Check Sitemap Settings: Navigate to Rank Math SEO → Sitemap Settings and ensure that all relevant post types are enabled to be included in the sitemap.
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Validate Your Sitemap: Use the Validate XML Sitemap tool to check if there are any issues with your sitemap configuration.

If you’ve tried all these steps and the issue persists, we recommend considering our professional setup service, which can ensure your plugin setup is fully correct and adheres to the latest SEO standards. You can find more information about this service at Rank Math Professional Setup Service.
Please let us know if you need further assistance or if you have any other questions!
Sources:
Troubleshooting the “Couldn’t Fetch” Error in Google Search Console » Rank Math
Rank Math Sitemap Issues and Their Fixes » Rank Math
This is an automated reply from Rank Math Support Bot. Your ticket has been assigned to a human agent and we will get back to you shortly.
Hello Team,
My post sitemap has stopped updating since 14th August 2025. Until 13th August, everything was working fine and posts were being added correctly. However, from 14th August onwards, the post sitemap is stuck and not reflecting any new posts.
On 14th August, I activated two plugins:
1. Ad Inserter (for AdSense verification) – activated in the morning, before publishing my first post of the day.
2. OneSignal – activated later in the evening (likely unrelated to the issue).
Since then, my new posts are not being added to the sitemap. The sitemap index is available here: https://devices4u.in/sitemap_index.xml.
I have already tried excluding caching, refreshing the sitemap, and ensuring there are no exclusions, but the issue persists. Could you please help me resolve this?
Thanks,
Aditya
Hello,
Thank you for your query and we are so sorry about the trouble this must have caused.
Please follow the steps below:
1. Flush the Sitemap cache by following this video screencast:
https://i.rankmath.com/pipRDp
2. Apply the following filter code to your site.
add_filter( 'rank_math/sitemap/enable_caching', '__return_false');
Here’s how you can add filter to your WordPress site:https://rankmath.com/kb/wordpress-hooks-actions-filters/
3. Remove all your sitemaps from your Google Search Console and re-submit only the index sitemap (https://website.com/sitemap_index.xml
)
If the issue persists, we might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.
Please do take a complete backup of your website before sharing the information with us.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
We really look forward to helping you.
Hello,
We are glad to know that this issue has been resolved. Thank you for letting us know.
This ticket will be closed now, but you can always open a new one if you have any other questions or concerns. We are here to help you with anything related to Rank Math.
We appreciate your patience and cooperation throughout this process.
Thank you for choosing Rank Math.