Weird fog bug only when i hit play

So for some reason i’m getting a weird bug (or maybe i’m not doing something correctly) whenever i play my game. The lighting and height fog is perfectly fine when i first start up my launcher and viewing it in the editor. whenever i hit play it just breaks on me. it only started doing this when i merged everything into one level and started making sub levels.

I have tried making only one sub level visible at a time and building the light but unfortunately its still doing the same thing.

In my level i have a post process volume,Exponential Height Fog, I do not have a directional light or any HDRI maps in my scene since its set at night (but if anyone know any tips to make it look even better using HDRI maps/ directional light let me know!)

Thanks!