So, there seems to be some type of limitation to the specific keys you can push simultaneously on the K55 NumPad. I first noticed it in a game, and used switch hitter to confirm.
Problem:
If you push multiple keys in 1 row, then other keys in those columns are disabled. Likewise, if you push multiple keys in a column, then other keys in those rows are disabled.
Examples:
If you hold down 7 and 9 (this is on the numpad remember), then the keys 1,3,4, and 6 do not work.
If you hold down 1 and 4, then the keys 2,3,5 and 6 do not work.
Is this a hardware limitation? or some type of bug?
I've tried doing the Fn+F4 reset.
I've tried with and without iCue running.
I'm on the latest version of iCue (3.10.125)