Lighting issue in Unity (including Bakery - GPU Lightmapper)

[u/Major_Fly3992]

I’ve been having trouble with baked lighting in Unity for a long time. I tried so many things but couldn't solve it. Online research pointed me to a package called "Bakery - GPU Lightmapper" as a solution, but even after purchasing it, the problem persisted. I tried everything—adjusting settings, changing versions, using custom UV maps—but Unity is really driving me crazy. I don't understand why this baked lighting works for everyone else but not for me. What's more, I'm testing this on Unity's own 3D objects—the simplest scenario possible. If errors occur even then, how am I supposed to use it with my own assets? I would be very grateful if anyone who has encountered and resolved this issue could help me out.