What is this ghost plane that appears with Multi-View Stereoscopy? I just set up a rig of six cameras, and for some reason, after enabling Stereoscopy &gt; Multi-View a plane appears that seems to be some sort of a guide, but the reason for its positioning is not clear.

Selecting different cameras in the Viewport doesn't make it change. Neither does selecting different cameras in the Stereoscopy list.

I would prefer not to have to tolerate this awkward plane off to right side of my cam rig (the active camera in the screenshot is the &quot;Forward&quot; cam). So if anyone knows why the plane is there or how to change its positioning/appearance, please share.
Other observations: Disabling Stereoscopy makes the ghost plane disappear. Switching the Stereoscopy mode to Stereo 3D puts it in front of my &quot;Forward&quot; cam (which is a better position, but since I need to use Multi-View this is not a solution - besides, I wouldn't mind the plane disappearing altogether).
Blender version: 2.9.0
That is your convergence plane, e.g. where the L/R cameras converge. You can turn it off in the N menu under View-&gt;Stereoscopy-&gt;Plane