Originally Posted by ImmortalPig

Failure of those particular keys is very strange needed. It's practically impossible for all those switches to fail, and it's unlikely they are on the same matrix. I doubt it's software failure. Maybe something got stuck under them, so you could try pulling the keys off or shaking the keyboard to see if something is stuck.

The keys blinking rapidly I'm not sure about, is there anything that would usually cause them to blink? Like a lighting mode or setting, or when you click a certain key?

Try plug it in to a different computer just to be sure, but I don't think it will make a difference.