@jasok2 said:

So interestingly, since my replacement ring this has stopped happening to me, its currently worked 100% of the time for the last few days.

I don't see how that could be but there it is. Maybe it is just because I removed all the old trusted devices and added new ones since the last phone update or maybe it the ring.

Maybe some of you guys could try removing all of your trusted devices and adding them again, see if that helps.

Since the last phone update...Whats your current android version?

@Nephiel said:

I still have to draw the pattern once every morning. But not during the day after that. Sometimes, it takes a bit longer to read the ring and the screen turns off before unlocking, but then it usually reads right away after turning on again, so it works for me. YMMV.

Yeah, and this annoyes me. I want to use a hard password i only have to use in case of lost nfcs. This password would not be memorizable then. But if i have to input my pw every morning i have to choose a very soft one. Thats not what i wanted. I - of course - dont blame you or jonny for this, only google.

I recently bought a nfc ring because of lollipops native support for nfc in the smart lock function.
I stumbled across this thread and read the bug post on google. According to the link posted in the bug file, it seems to be a wanted feature to switch off the lock functionality. Take a look at this: http://forums.androidcentral.com/android-5-0-lollipop/532617-smart-lock-phone-locked-after-4-hours-inactivity.html. Seems to be as intended to deactivate this feature after 4 hours.
I'll see if the can be 'workarounded' with the xposed module, too. Nephiel only mentioned the marshmellow behaviour.
Would it differ if one uses the nfc ring app? Is the nfc ring app less secure than the native android smart unlock feature?
Thanx in advance.