Hi Keith
after a mental day with real led screen processors giving me a hard time at work
i read your post and thought here we go again so i set the Artnet setting back to default and then set up QLC+ and it worked fine.
so i then set up Xlights and yes you guessed it, it worked, but i have set this so many times it hurts

i will attach all the files and screen captures to this post and if i have the issue again or it fails to work i will recapture with wire shark and post
if you do spot anything that may have been an issue with any of the files i have posted please feel free to let me know
thanks for looking into a strange issue for me