Why did MacBook Pro Touch ID stop working temporarily? Left my 2016 MBP in coffee shop to go to the bathroom. I put my screensaver on but when I came back after a few minutes it required my password instead of Touch ID so I logged in and then put the screensaver back on and it still didn't work.

Toggling Touch ID fixed it but I'm wondering if this is just a bug or something else.
Must have been a bug. Haven't experienced again.