Shelly Dimmer 2 driver not working

Hi,

I have two Shelly Dimmer 2 modules installed. I use the built in HE drivers for both of them and both are added as virtual devices the same way except the have of course a different IP address and device name. One of the Shelly Dimmer is working great but the other one is not responding to any event/command. I have tried the REST API directly on both of them and it's working as expected so I don't think it's a faulty Shelly module.

What could be the problem with one of my Shelly Dimmer Device setup?

Found a solution here