[Plugin: WordPress SEO by Yoast] Problem with WordPress SEO post editing page settings

Unless I do not get something, something does not seem right in the WordPress SEO settings in the Post editing page.

On a site I manage on this post page for example
https://www.nicolatrwst.com/nt-novels/bayou-nights/
On the Post editing page:
In focus Keyword I have : bayou nights voodoo new orleans vengeance katrina novel nicola trwst
In SEO title I have: Bayou nights a Novel by Nicola Trwst
In Meta Description I have: Bayou Nights is a novel of vengeance, carried out in the terrifying environment of corrupt politics, social injustice, and the exotic eroticism of Voodoo

Yet under focus keyword, it says:
Your focus keyword was found in:
Article Heading: No
Page title: No
Page URL: No
Content: No
Meta description: No

Clearly this is not right, as
Bayou is in both keyword and article heading
Bayou, nights are both in keywords Page URL and and page title
Novel, Nicola, Trwst, bayou, nights, are both in keywords and content
Bayou Nights novel vengeance voodoo are both in keywords and Meta Description
Am I misunderstanding how to fill in these information or is something wrong?

Thank you for any insights

EDIT: It looks like you are only allowed One keyword sequence and not a serie of keywords. I was misled by the fact that examples I found on the web had several words, but I guess they were still checked as one sequence.
If I am wrong please let me know ??
https://www.ads-software.com/extend/plugins/wordpress-seo/