some keyboard shortcut doesn't work

Some keyboard shortcuts doesn't work. This might be related to the keyboard layout (I use french azerty) and most letters that are not working are different from qwerty (m being at the qwerty's ; place, w being at qwerty's z, but no problem with a and q). Tried with 'super +' and 'alt +'. Also shortcuts works till the session is rebooted. Then, it writes the letter as the 'super +' or 'alt +' aren't on.

I use Xubuntu 21.10 with xfce 4.16.

Well, first spontaneous bug report, let me know if there's something missing.

Cheers ! Max