Fix Background Overriding?

Okay, I know I posted about this before, but I reposted to be more specific.

So, I'm making a circuit with an override. I changed the background, but when I use an untrigger or an override using the same primary background, the background doesn't change to the primary background. Is there a fix, or is this an unpatched bug?

The music doesn't change to the other music in the second and third lap either

message to bring this back to the top

maybe you put the checkpoints in the wrong place

Nevermind, I fixed it.