only i can think off is your light mod and i dunno what mod you use atm also what i figure out some weather mods with light in it don't work with some other light mods my taste is Climates Of Tamriel Special Edition - Weather - Lighting - Effects - Audio Enhanced Lights and FX it works very good for me and dont for get to download Unofficial Skyrim Special Edition Patch its a must have to fix all kind off bugs and get LOOT to order your mods