touch id on my mac pro

Okay, so you're now running on BS 11.1 which might be a reason to cause this such issue. Thus, my suggestion for you would be to try to reset the SMC of your Mac as this would fix. Please follow the instruction as found from here: https://support.apple.com/en-euro/HT201295

Hi Nibal123,

let's make it a little more specific, 1) what os was your Mac running on before update? and which os is your Mac running now?

2) is there any error prompt when you try to use the touch id?