Issue with Certain Sitemap URLs Not Working

Hi Rank Math Support Team,

I’m reaching out regarding an issue with sitemaps on my website: https://wpoptimizers.com.

The main sitemap https://wpoptimizers.com/sitemap_index.xml is working perfectly in Rank Math. However, the following sitemaps return 404 / do not work:

• https://wpoptimizers.com/sp_accordion_faqs-sitemap.xml
• https://wpoptimizers.com/partner-sitemap.xml

I have created these using ACF custom post types, and caching is disabled. Could you please guide me why these specific sitemaps are not being generated and how to fix it so that all CPT sitemaps work correctly with Rank Math?

Looking forward to your guidance.

Thanks & regards,

The page I need help with: [log in to see the link]