How to block light by using V-Ray Shadow Catcher but make shadow still affect alpha?

Now light is go through Shadow Catcher objects.
These are settings and scene’s details:


Result:

I think cause this problem was light direct go through the Shadow Catcher objects,​​​
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image that inside Red Square should be dark like this:


But when I got this result, shadow was not affect alpha,
​So, the problem is, How can I get that perfect shadow and correct lighting at the same time?

Would you be able to send me the shadow catcher geo, saved within the same file you’ve shown here?
I can do without the character. :slight_smile:

I will send the files to your email. Please pay attention to your email.

Have you checked your email?