I went on synapse to check what was going on and saw that the system was no longer recognizing the 12 button plate anymore...
I went to support and saw that i should try to clean the contacts. I did it although it's a brand new device. In the end it worked.
Now during my day 2 of playing with it button 2 and 5 stopped working and button 1 started spamming the key I it was bound... totally crazy.
I tried cleaning contacts again but it won't work.
On synapse, same thing is going on: 12-button plate is not recoginzed and crazy thing is that when I plug the 2-button plate it now recoginzes as the 7-button plate ...