Word 365: language of correction

[Seylione sdx]

I write mostly in french an turn off any other language

But when I hit F7 only English comes out

Its a bug to be rapidly solved

Thanks

[#2]

I hope you have all the settings configured correctly as described in the below thread ...
https://support.office.com/en-us/article/change-the-language-office-uses-in-its-menus-and-proofing-t...

let me know.