Thanks for checking the external keyboard, this is the exact behaviour I've seen as well. Flashing the firmware hasn't helped.
I'm not sure where I saw it, but I think that the firmware for the keyboard is on the main board, not the keyboard itself. I'm worried that swapping the keyboard may not resolve the issue.
I'm not sure where I saw it, but I think that the firmware for the keyboard is on the main board, not the keyboard itself. I'm worried that swapping the keyboard may not resolve the issue.