I have a Schlage Z-wave lever style lock and only come in and out of it using user codes. It’s a door used by multiple parties including our upstairs neighbors and dog walker/cat sitter. Everyone uses a different code. The door is supposed to lock after each code is used and it does whenever I am paying attention.
The thing is, I often come home or am leaving to find the door unlocked. I am nearly certain no one is manually pressing the unlock button inside. What else could be happening?