Important problem with sitemap

Hi,

Today I have to share my sitemap and discover than all new url are not inside.

The sitemap just show article from 20 december 2020.

Then I try to delete cache but have no change then I remember that I have already problem unresolved with sitemap and they tell me to change the number of url in sitemap setting to reset it.

And it work, I can now see the new url.

Then I post here because I think many people have the same problem but don’t know about.

I think it’s perhap better to use another plugin for sitemap, because now Google change the way to index new url then sitemap become more important than before.

Hope Rank Math’ll correct all the so frequent bug they have in 2021!