Redirection issue with Ultimate Member activated

Dear Team,

Your plugin is outstandingly good and efficient.
However I am facing an issue which I have tried to debug for the past week unsuccessfully.

Let me describe it below :

I am using Ultimate Member for a community website.
When I am on the homepage and switch from french to english, I am automatically redirected to the login page I have setup using Ultimate Member ( not the wordpress one ).

This behaviour occurs each time a page contains a link to a restricted content. And I cannot explain why. If I disable Ultimate Member there is no more issue. ( but I need this plugin…)

Homepage ( Contains links to restricted page ) >> switch to language >> Redirect to Login Page

Is it a know issue ?

Thanks in advance.