no dmx output from cue list/chase

I have created a cue list/chase using live lights. The lights on stage change to the colours I want when creating the list/chase. When I play the list/chase it cycles through the different steps, however there is no output to the lights, and the 2d plan doesn’t indicate any colour change. Is there a setting that needs to be changed to give dmx output from running a cue list/chase?