Difference between cuboids

Hello, Guys, Could you please help me ?

I need to extract this Cuboid from main Cuboid which is panel and it doesnt work,
i tried to do some edits with output list but it doesnt work,
it should be shading panel in the end

Thx, for help

Hi @marek1992
What does the error says at “Cuboid.ByLengths” node?

Ensure there aren’t any zeros fed to Cuboid.ByLengths by adding a small number to all values of Color.Brightness

Hey, Guys thx for help, it is working now, there was problem with zero values of Cuboid, and because of that the Difference didnt work, and also some editing with list,

i will post some picture,