The same thing is happening to me. In addition, none of my automations worked for the last two days, and many of my z-wave devices reported their status incorrectly. I filed a ticket with support a couple days ago and had to follow up last night with more info. Still no reply from SmartThings…
Here’s what I wrote.
Email one:
Hello,
For about two days, many of my scheduled routines have failed to execute, and none of my smart apps are working. Additionally, device status is not reporting correctly - switches say they are off when they are on, contact sensors never show a change in state, etc. Then hours later (according to the log), they change state rapidly all by themselves. Lights came on in the dark for no reason last night, and my contact sensors and motion sensors all seemed toggle states simultaneously around 11:15am MST today when I can confirm there was no physical activity.
What gives?
Also, lights coming on in the middle of the night for no reason is inexcusable and a cause to ditch the whole platform. There’s a difference between loosing out on convenience ice by having to go back to flipping switches manually and being disturbed and woken up by a malfunctioning SmartThings!
Email two:
This problem is getting worse. On the 4th day of bugs, it is going from an inconvenience and turning into a security issue. Now my front door is unlocking and re-locking of its own accord making my house noticeable un-secure. I’m sitting here at home watching the bolt turn!
Do I need to unplug my hub to keep my house safe?!
If this continues, I may be forced to uninstall my hub permanently. What is SmartThings doing about this?!?!