I did change the light quality to very high after I posted the comment the light displays on the ground now but the rear cab and rear bumper lights do not light up so must be static light
If you can try it in a folder by itself or with minimal mods and see if it works fine. Then add mods back till you see the issue appear to help figure out what's causing it. Only issue we've seen so far is the real lights on the ground and that setting fixes that. If you're on the facebook page you can message me directly for a quicker response.
Derek