Not working backlight keys:
ESC, F1, `, 1, (tab), Q, (caps), A, S, (shift), Z, X, (ctrl), (fn), (windows), (alt)
Has anyone run into issues like this with these laptops? I paid almost $3k for the 4k touch version and didn't expect a hardware failure within 4 months

ps... Already had to replace the external power supply after it sparked at the wall and stopped working.