After tracking, why is my setup scene plane showing up in my rendered image?

[Kingsley_Obinna]

I did some camera tracking. Added my 3d cube. Then set up my background image. Followed by clicking the “set up tracking scene”

When I tried to render an image clip of it, it renders everything fine, albeit the shadow catcher plane is rendered as well.

It is supposed to not be visible and just catch the shadow. But in my own, it is showing the shadow visible and the plane visible.
I have included a picture of the rendered image

[oo_1942 (Kim)]

What is the blender version?
Usually, all settings are automatically set, but it’s weird.
Did you check if there is a problem in Composing.

If you share the file, you can check it out.