Sometimes I've noticed that the Smart Lock - Trusted Face feature doesn't work, no matter what the lighting or the position of my face relative to the phone.
I thought that an "Improve face matching" should do the trick, but when I go to do that, I get this:
Usually a restart fixes things, but this isn't a really good solution. The camera app works normally even when this happens. Has someone found a way to fix this somehow, or should I just wait for the next update from Google?