I booted my laptop docked to a USB keyboard and external monitor. I've used it in this setup very recently and it was fine. Today, the USB keyboard is sometimes ignoring a key press.
It happened a couple of times when I hit Home. But if I test it specifically, the key works fine.
I thought maybe I was hitting it wrong after adjusting from the smaller laptop keyboard. But then it clearly dropped a few characters when I was starting to type something.