3D camera-- mysterious white plane blocking drawings

I was really excited to play with the 3D camera in Toonboom but so far, it seems only good for parallax pans or moving straight on one axis through a bunch of 2D elements. If you try to rotate the camera on the y-axis while moving the camera, there’s just this mysterious white plane that covers half of the scene.

This is the camera setup from the top view for reference.

And this is what ends up happening even though the element is clearly in the shot. Is there some kind of setting I’m not aware of or a clipping area that I have to steer around or what?

Any suggestions will be helpful!