Backlight on keyboard no longer working after driver update

Keyboard is working fine, but the backlight stopped after I updated drivers today.

Running a Pixelbook Eve i7 with Win11 installed. I changed it over back in Feb or March of this year. Don’t use the device for much. Noticed a much faster boot after updating drivers, but now I have no backlight for the keyboard and the key to change it (LCrtl + LAlt + Brightness up/down) is not affecting it whatsoever.

use this Releases · death7654/Chrultrabook-Tools · GitHub