I am forging a map on sandbox and i am having a problem when the game starts the lights flicker on then off this happens in both forge and custom games can anyone tell me why?
Split screen most likely. Or you have the lights interlocked, this sometimes cases problems with them.
Sometimes on my maps the lights will go out briefly but then come back on when I am quite far away from them. I think they are just quite glitchy items.
Agreed. The game only fully renders objects to a certain distance. Once you pass that point, it only half renders them (sorta). This allows the game to work smoothly because it doesn't have to render every object in the map simultaneously. So it isn't a glitch, it's done intentionally to make the game run better.