Yeelight Smart Dimmer Switch - dimmer function is not working


Yesterday I installed “Mi Smart LED Ceiling Light” and paired it with “Yeelight Smart Dimmer Switch” (Bluetooth version).

Initially, everything was working fine, I was able to switch on/off the lights using the yeelight switch, dimmer also was working - I was able to dim the lights.

I added the ceiling light to the Mi Home app, installed updates and after some time I noticed that the dim function stopped working.

I tried to reset the light, re-paired the yeelight switch, but the dimmer function still is not working.

Am I missing something?