Combinatorial batches doesn't work / Only one picture

[POWVorti]

Hi guys,
I'm not able to use the combinatorial batches. I use this prompt:
traffic light, {@red|yellow|green} light
and activated these settings:

It's only one picture generated. Do you know, what is wrong?

[POWVorti]

My bad... I have to use it like this:
traffic light, {red|yellow|green} light