I have Nuki pro with door sensor, both latest available firmware.
My Nuki is set up to lock after door close and/or after 5 minutes.
I realized, the hard way, that if you unlock Nuki manually and then leave, the Nuki keeps thinking it’s still locked and does not lock the door!!
I figured one day, when we came home to open house
I reproduce the bug 90% of times. Today I tried it with my father in laws Nuki pro. Has the same setup. Bug reproduction 100% of time.
I’m talking to Nuki support, but is taking way too long. I now lock my door manually with the key after we leave just to be sure (beats the purpose of Nuki, but I don’t trust it anymore).
This is major drawback to me and a major security issue. My old Nuki, doesn’t have the same bug.
I also made a video here: iCloud