I think I found the answer sgpivach. First of all, your sitemap might have not indexed your change by Google…(or something like that). I had a similar problem as you. Anyways, when I resubmitted my sitemap, I could actually find my post on Google. That’s very encouraging.
I just went to Google Webmaster Tools, and the sitemap was processed September 19th. Does that mean that in order for me to see my website appear in Google the way I saw it in Yoast seo, I have to wait until it processes my sitemap again?