2nd-to-Lowest Brightness Setting on PC Is Now Full Brightness, What Do I Do?

HP Omen 17 laptop with Windows 10

Adjusting the brightness of my screen works normally, until I get down to the 2nd lowest level (10), where it reverts to full (100) brightness. From there, going down to 0 brightness using FN+F1 works as intended, while using the brightness slider in display settings seems to make it so that Brightness level 10 = 100, 9 = 90, 8 = 80, 7 = 70, 6 = 60, 5 = 50, 4 = 40, 3 = 30, 2 = 20, 1 = 10, and 0 = 0.

This started yesterday and may have been after an update, I don't remember. Would greatly appreciate if anybody could help me fix this janky bullshit. Thanks!