Steelseries Merc Keyboard - Extended Keys unwanted new behaviors.

I just ran into the same issue today. The keyboard worked (special keys) yesterday and today it does not. The three updates made to the system where: KB4034674, KB4034662 and KB890830. I cannot locate what would have caused this in the updates but my left hand keys are now mapped wrong like yours. What's weird is that there are no driver changes made to the keyboard, so it has to be something in windows OS settings. If anyone figures this out please post the fix. I love this keyboard and don't want to lose it.
Edit: Everyone should find that they have an error (876) in event viewer (system) with this file name displayed: Alpham164.sys. It will also be followed by another warn message (219) indicating that the driver Alpham1 failed to load. I was fine until this error appeared. The file is a Idealzon keyboard driver and it fails to load after one of the updates and a reboot.