Light sensor just quit working after security update

[Android Central Question]

with this update, I lost the auto dim option, my Iris scanner has stopped working. When on a call and place the phone up to my ear. the screen stays on. I even think the LED for "charging" is dimmer. all this happened immediately after the security update.

 

[belodion]

What device?

 

[warpedjoe]

Sorry, Galaxy S8