Wikinewses uses a special license and have different MediaWiki messages than other wikis. That causes some confusion.
There were some discussions at https://en.wikinews.org/wiki/Wikinews_talk:2024_Copyright_license_upgrade#To_do_per_November_2024 and I thought that now it was fixed. And the change of licenses on enwikinews +2 was done per T381421: Change default license on en.wikinews, pl.wikinews and he.wikinews to cc-by-4.0 on December 16, 2024.
But I know of two issues. First one is mentioned in T381946: Update license of frwikinews to CC-BY-SA 4.0 by January 1, 2025 where frwikinews request to change to CC-BY-SA-4.0 which is the default license of all wikis.
There are three level of licenses set in 'wgRightsUrl' and 'wgRightsText' (default for all wikis, exception for all Wikinewses, exception-exception for one Wikinews):
'default' => 'https://creativecommons.org/licenses/by-sa/4.0/deed.$lang',
'wikinews' => 'https://creativecommons.org/licenses/by/2.5/',
'enwikinews' => 'https://creativecommons.org/licenses/by/4.0/',
For frwikinews the problem is that they want to use the default license CC-BY-SA-4.0 so there was a question if they needed the specific line or not.
Because if a delay of the change of configuration the $1 ad $2 was replaced locally on frwikinews by plain text in some MediaWiki messages and that now causes problems.
The other issue is mentioned at https://pt.wikinews.org/wiki/Wikinot%C3%ADcias:Reda%C3%A7%C3%A3o/Atualizar_licen%C3%A7a_para_CC_BY_4.0_(04/12/2024)#Informa%C3%A7%C3%B5es_sobre_a_sugest%C3%A3o_no_Meta_sobre_a_mudan%C3%A7a_da_licen%C3%A7a_padr%C3%A3o_para_Wikinews and it is that “It looks like the mobile editor uses a different message for all Wikinews wikis: MediaWiki:Wikinews-mobile-license-links rather than MediaWiki:Mobile-frontend-license-links.” (reported by Utilizador:Edu!)
So as suggested by @matmarex in the discussion above I have created this in the hope that we clarify which messages is used and get them updated and delete those that are not needed.
As info I can tell that there is a RfC on Meta https://meta.wikimedia.org/wiki/Requests_for_comment/Update_standard_license_for_Wikinews and I hope we can change the standard license on all Wikinewses on February 1, 2025 to CC-BY-4.0 (so still without the SA part). It may give some questions from the different Wikinewses so hopefully we can eliminate some of the problems before that date or at least make sure we know which pages need to be fixed locally.
(If this task is not what was meant feel free to close it or fix it.)