I made a lightpost in Blender for the next track I'm already starting lol (Patreon)

If anyone knows how to help me get it into assetto, hit me up. I already ran it through xpacker and it shows up in Race Track Builder, but the 3 squares with the lights in them don't show up for some reason, just the 3 posts. If anyone has any thoughts on why, please him me up!