Surface Pro keyboard typing wrong characters

[timewarp2]

I have a surface pro 3 with a pro 4 cover keyboard. It works perfectly fine when in MS Edge or in Word (or in this post) but will not type the correct characters when trying to type in Firefox or in Chrome. It just types the keyboard in sequence, starting 1234 .....qwerty...etc. Even if I keep typing one key only it still types this sequence. Because it works in some browsers and not in others I am assuming it is a setting issue, rather than a hardware issue. Does anyone have any clues as to what might be happening

 

[Paradox]

Wow, that's really strange..
If you haven't already try updating the drivers in device manager.