Dimmer not switching off

Hi, I’ve got a Qubino Flush Dimmer linked to a couple of LED downlights. When I use the switch to turn the lights on or off, the state is properly displayed in Home Assistant.

However, when I use the light.turn_off service, the LEDs dim to about 10% but do not completely turn off although HA indicates that the lights are off.

Anything I can do to make this work correctly?