2 days after completing my build, all of a sudden, the bottom left row and the thumb keys stopped working. It was weird because for a moment they started working and then they stopped working again. I am using the no solder headers and I was using magnetic usb cables since I didn't know I wasn't supposed to. I was also using a magsafe stand with the keyboard. Removing the acrylic covers and pressing the nice!nano into position seem to have solved the issue for now. But can anyone tell me why we're not supposed to use magnetic usb cables? Also, it the magsafe stand ok? I keep seeing YouTube videos where people do this. Thank you.