Shelly DW2 vibration sensor does not work

  • Hi,

    I've bought 8 shelly door/window 2 sensors mainly because it has a vibration sensor.
    The the sensor does not work. Last 4 days of testing, and after installing 3 sensors on doors, two of the sensors reported vibration once and the doors where not even opened at the time. It completely ignores when a door is opened or closed in terms of vibration.
    I've tested many levels of sensitivity and even all the way up it does not work.

    Is there anything i can do? I see from older 2021 threads that the vibration sensor was unreliable, but after years isn't it fixed? Why is it advertised as a function of this sensor?

    Hope someone can help. Thank you.