Hi all.
New 2018 MBP here, 13", i5, 256GB, 8GB RAM. Purchased 9/4. Set up, left it to download some stuff, worked great. Today, 9/5, plugged it in while I was using it before work. Got home at lunch and it wouldn't wake up, restarted and got the KP notice.
Never plugged anything other than the supplied charger into the MBP. At this time it was in the lower-left USB port.
Also experiencing some double presses on the spacebar but massaged it for about 20 seconds as I read on here somewhere and that seems to have cleared up (knock on wood).