FGD-212 unable to dim with slider or long press with button

My setup is a 3 wire connection and a fibaro bypass (tried without the bypass to).
When I do a “auto calibration” it manage to dim the light smoothly, both down and up.
But when i after that try to use the slider in habpanel or make a longpress on the light button, it doesn’t dim :frowning:
I can turn it off and on with both the button and the slider, so it’s the right node.
HW wise it works since the “auto calibration” does it!
Anyone a clue?