Why does Razer blackwidow chroma TE miss keystrokes randomly?

My keyboard randomly misses keystrokes on different keys. Sometimes it is the ‘m’ key, other times it is the number 5 or the letter ‘s’ or spacebar at random.

The down arrow key is the worst with almost 30% hits not registered. Is it a problem with those respective switches OR is the keyboard logic board / electronic circuitry gone bad