Working dimmer but the lights still don't work

I’m just starting with Z-wave.

I succesfully added a controller to my roller shutter so I know how the progress works.

Now I started on automating the lighting but here things go wrong.
I have a 3-wire system and I connected all the wires according to the scheme on the manual.
The dimmer is now included and I have control via a pulse switch and via the vera controller.

When I give commands via the computer or switch the status of the dimmer changes, only the lights themselve do not react. I tried switching the neutral wires between N and O but this causes the dimmer to loose power.
Life wire has power.

Is there anyone having the same problems?
I did not see any errors either. I think I have the wiring correct so it might be a “settings” problem