[Plugin: Ambrosite Next/Previous Post Link Plus] multilingual linking

I have a site with a custom post type “projects”: https://www.innovativoli.no/en/prosjekter/susan/ (single project)

The navigation between the posts (down at the page) works well in the default Norwegian version, but the English links reset the language to Norwegian.

Anyone a clue?

Thanks!

https://www.ads-software.com/extend/plugins/ambrosite-nextprevious-post-link-plus/