if you alerady looked at the FAQ of the forum , you probably know how to setup the project and the channels
so i guess that the problem is that for nowdays project files ; you need to download a Light extention ( the one created by exige is a good exemple )
it allows to transfer a midi signal in a user mode

check if you have it , and if it is installed properlly and if your project file cant open the lights , doing it manually with a drag and drop inside this extention

i personnaly have a glitch where i need to set the output of my light track on LP pro chanell 16 instead of 6 , you should try this as well

and then if it still dosent work , make shure that project isnt one live 10 and finally , watch if the pages for the light channel are maped correctly

sincerlly
the french bastard

yea , im curentlly still at work , but when ill get home ill try

could you send me the link of the video featuring the project ? ( including the download link )

didnt had time to take a look , ill do it tonight