Campaign item 'Explore this Kingdom with a minimum of level X' not progressing in French

Platform, device version and operating system: Steam, Windows 10 (1909)

Screenshot or image: -

What you were expecting to happen, and what actually happened:
In French, the campaign item ‘Explore this Kingdom with a minimum of level X’ doesn’t progress. Switching to English fixed it. Had that idea because a similar issue seems to have been fixed recently, and switching lang to English was a workaround

How often does this happen? When did it begin happening?
Playing in French, well when this kind of item appeared

Steps to make it happen again
Switch back to French

Side note: I completed a Mythical battle in Explore mode right before switching lang, and the Kingdom got back to that Mythical battle, but the Mythstones count was OK

Thank you!