Composure Garbage matte doesn't work on 4.27?

Hello everyone,
I’ve been following tutorials about composure garbage matting on YouTube, everything went fine until I got to garbage matting part.

The layer didn’t work as it should be on 4.27 but after doing the same steps on 4.26 it worked.

Can someone tell me is there anything else to do to make it work on 4.27?

It should still work in 4.27 – i’m pretty sure a demo we built last year w/ a garbage matte was using 4.27.

can you supply more details about how ‘it doesn’t work’?

Hello @SIRTJames, thanks for replying.
When I add a gabage matte layer in the composition and put a plane and add it to a layer and include that layer in the garbage matte layer, the plane doesn’t appear in white.

sorry, things have been busy – are you still struggling with this?

what do you mean “the plane doesn’t appear in white” – is it supposed to be white? is something else appearing opposed to what you are trying to have as a garbage matte? also, what guide are you using?

I am having this same issue but in UE5. I too am following tutorials (for UE4 because there is almost nothing for this in UE5 on Youtube) and when you got to composure and add a CG Matte layer, all the tutorials have the layer start out as a Holdout layer and white and the Capture Actors are black. When I do it the Holdout layer is black and the Capture Actors are white. The problem with this is that when you go from a Holdout layer to a Garbage Matte it inverts it and now I can not get my foreground elements to appear over my greenscreen, they just disappear. What am I doing wrong?

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Have you find a solution? I have the same problem.