How to avoid Shadowcatchers catching each other?

[fredmonta]

I'm trying to create a mirror for compositing a scene onto a video, and I used 2 shadowcatchers (reflection only), perpendicular to each other.

While they do their work mostly ok, the big shadowcatcher is catching shadow from the smaller one. new projects in mulund

What I want is simply what exists on the left - the white box in the front, flats in chembur the bottom reflection and the back reflection, but not the black rectangle (which is exactly the shadowcatcher's shape) The Guardians

[masterzone]

could you please attach here a jpg of a screenshot? I'm little bit confused