Hello,
Thank you for contacting the support and we regret the inconvenience caused.
If you’ve simply pasted the image URLs in the content, then they would not be added to the sitemaps. In order to get added to the sitemap, the images should be in visual form (under <img> tags). In that case, you can modify and use this filter to add the desired URLs to the sitemap: https://rankmath.com/kb/filters-hooks-api-developer/#add-extra-urls-in-sitemap
However, if the image is under an img tag, please follow the below steps and see if that helps:
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/
3. Clear your website and browser’s cache and check the sitemaps again.
In case the issue persists, please share the URL of the post so that we can have a closer look.
Looking forward to hearing back from you.
Thank you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.
