Adding a Teams room in a meeting already running or existing

Hello to all,

When I want to add my room to an existing meeting, I click on "Add Meeting Room" and the system only offers me one room that is not the right one.

The room is a resource account with a 365 Meeting Room license.

I compared the Exchange properties between the two, it's identical.

And of course when I schedule a meeting from Outllook or Teams it works.

Regards