CSG Subtraction through two meshes

Questions
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1

Hi there,

I am trying to cut a hole through two different meshes with the with react-three-csg. Independently the Subtraction is working for both meshes it’s working. But if i have two meshes and Subtract, only one mesh gets the subtraction. Here is my Code:

<mesh
        castShadow
        receiveShadow
        scale={[.000001, skalierungsfaktorHöhe, skalierungsfaktorBreite]}
        position-x={-0.0001 - oberflächeBGSOffset}
      >
        <meshStandardMaterial
          envMapIntensity={0.2}
          map={oberflächeTB_BGS.map}
        />

        <Geometry ref={csgBGS}>
          <Base geometry={nodes.TuerblattBGS.geometry} />

          <Subtraction scale={.5}>
            <boxGeometry />
          </Subtraction>

        </Geometry>
      </mesh>

      <mesh 
        castShadow 
        receiveShadow
        scale={[
          skalierungsfaktorStärke,
          skalierungsfaktorHöhe,
          skalierungsfaktorBreite,
        ]}>
        <meshStandardMaterial envMapIntensity={0.2} map={oberflächeTB.map} />

        <Geometry ref={csg}>
          <Base geometry={nodes.Tuerblatt.geometry}/>

          <Subtraction scale={.5}>
            <boxGeometry />
          </Subtraction>

        </Geometry>
      </mesh>

For better understanding: there is a mesh for a door and a very thin mesh that just has the material of the other side of the door. Is there a problem, when those Subtractions interfere? Would be happy for any help. Here are images for better understanding:

screenshot(4)
screenshot(4)846×1306 73.6 KB

screenshot(3)
screenshot(3)846×1306 86.1 KB

the first Subtraction just gets ignored only the second one gets applied. If i change the order of the meshes in the code the other subtraction is displayed.

2

could you post this as a small, contained codesandbox?

3

I tried it with basic geometries and it works perfectly fine. I’ll check my imported geometry if thats the problem. Thanks