ArgumentException: EditorSceneManager.SetActive failed; you can not save a preview scene

I’m trying to upload an avatar to VRchat, I’ve found no answers in any of the VRchat resources. I figure I would get better help here.

I have everything ready to go, but once I click the “Build and Publish” button nothing happens and the little dialogue box in the bottom left says: “ArgumentException: EditorSceneManager.SetActive failed; you can not save a preview scene”

How do I fix this?

Having the same problem. What is this? How to fix it?