It appears that I have mashed my keys enough that the switches might now be near the end of their lives. Recently my ‘W’ key has been acting up by randomly not sending the signal that it is being pressed. Even while the key is being held down it will randomly cut out. (yes I do play many FPS games, which is probably why the W key is the first to see this issue)

I assume this is the end of life of the key switch, is there anything else this could be caused by?
When trying to repair my switch I can’t seem to find a good replacement switch to buy. What is a good replacement switch for these? (I assume they are gen1 Razer green switches?)