If you look at the protection log of the Finnish-language Wikinews and search for "Wikiuutiset:Etusivu" (the main page of the fiwikinews) , you can see that the link is red, although the main page exists:
https://fi.wikinews.org/wiki/Toiminnot:Loki?type=protect&user=&page=&wpdate=2019-02-07&uselang=en
Additionally, if you place the cursor at the text "Wikiuutiset:Etusivu", you get a tooltip which says "Wikiuutiset:Etusivu (sivua ei ole)" i.e. claims that the (main) page does not exist. That is incorrect, of course, which can be easily confirmed by clicking the link. Same thing occurs with the text "hist" (link to the revision history of the main page).
However, if you (for example) search the protection log with the performer and/or the target, the problem goes away, and you see Wikiuutiset:Etusivu as a page that exists (as it should):
https://fi.wikinews.org/wiki/Toiminnot:Loki?type=protect&user=Ejs-80&page=&wpdate=2019-02-07&uselang=en
https://fi.wikinews.org/w/index.php?type=protect&title=Toiminnot:Loki&page=Wikiuutiset%3AEtusivu&uselang=en
https://fi.wikinews.org/wiki/Toiminnot:Loki?type=protect&user=Crt&page=Wikiuutiset%3AEtusivu&wpdate=2019-02-07&uselang=en
Due to the so-called soft closure and the later re-opening of the fiwikinews, the main page has had several logged actions done to it:
https://fi.wikinews.org/wiki/Toiminnot:Loki?type=&user=&page=Wikiuutiset%3AEtusivu
https://meta.wikimedia.org/wiki/Proposals_for_closing_projects/Closure_of_Finnish_Wikinews#Soft_close
The aforementioned problem existed before I removed the main page protection today and placed it again shortly afterwards. I didn't notice any differences between the situations before and after my actions regarding the main page. I used both Mozilla Firefox 65.0 (64-bit) for [[https://fedoramagazine.org/announcing-fedora-29/ | Fedora]] and Google Chrome 72.0.3626.81 (Official Build) (64-bit) and observed the exact same thing with both of them.