Thanks for visiting the Community. I’m sorry to hear that and for the delayed response. Let’s check this out — a few questions: when did the issue start? Is it paired to your Nest app? Also, have you checked if the deadbolt is calibrated?
When you’re installing your lock, the Nest app will have you check the deadbolt’s calibration. Your door needs to be closed during this step. If your door was open, your lock may not be able to properly calibrate. Without accurate calibration, the Nest app may say that your door’s locked when it’s not, or vice versa.
Here are some troubleshooting steps to try:
Let me know how it goes.