K2 HE Arrived with Defective "W" Key

I bought it on Kickstarter. Sometimes the W key is randomly held down, spamming Ws. This stops when I press any other key.

Otherwise, the W key does nothing. I have to use Windows on-screen keyboard to type any "W"s.

Update: I updated the firmware, and if anything it's happening more often nowwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww

Update 2: Here's a video https://www.youtube.com/watch?v=uqphGcZgCTo

Update 3: I tried swapping the switch, and the "calibration" feature on their website, no luck

Update 4: Factory reset did not ork.

Update 5?: Now my square bracket is broken :/ https://www.youtube.com/watch?v=gQd9eIPxMzo