Okay so only with static lights, and only with certain models. Perhaps something is wrong with the static lights itself. Perhaps they are set that they dont brighten entities/mdls?

Or could this perhaps be some weird bug between the models and PRV/static lights? Like that something is a little bit off with the models that there is some error with how PRV is calculated over the models for lightning etc.? (doubt that though since I never encountered it myself)

I personally dont work much with WED / static lights anymore so I cant help you much further I think.