Return of Reckoning

On old characters, the faulty keys are bind (the number appear on the hotbar) but not doing anything, no yellow border on key press. And when trying to bin them, same thing it give "none".
Same thing on new character.

i use piper to configure my mouse. Same result as with the keyboard. When I ...

No issues for some time. But since a couple of months I have the following:
some keys assigned to hotbar stopped working.

So in the key mapping menu, when i try to assign theses keys it say "none".
List of keys than I can't assign: 2 7 9 0

I can use them in chat without issue.
I can use them on my ...