Issue with Black Model Display in secondaryRenderer When Creating Multiple Views

Hello everyone, I want to create multiple views in my app, and I referred to this demo: https://threejs.org/examples/?q=line#webgl_lines_fat. I created a new app through the App Manager, and then inserted the following code using the exec script puzzle. After running the project, I noticed that the model appears black in the secondaryRenderer window. The possible reason might be that the HDR exported from Blender is not rendering correctly in the secondaryRenderer. Could you please help me figure out how to resolve this issue? Thank you!

const container = document.createElement('div');
container.id = 'secondary-view';
container.style.position = 'absolute';
container.style.top = '20px';
container.style.right = '20px';
container.style.width = '300px';
container.style.height = '300px';
document.body.appendChild(container);

const secondaryRenderer = new v3d.WebGLRenderer({
  antialias: true,
  canvas: document.createElement('canvas')
});

secondaryRenderer.setPixelRatio(window.devicePixelRatio);
secondaryRenderer.setSize(container.clientWidth, container.clientHeight);
secondaryRenderer.autoClear = false;
container.appendChild(secondaryRenderer.domElement);

secondaryRenderer.physicallyCorrectLights = app.renderer.physicallyCorrectLights;
secondaryRenderer.outputEncoding = app.renderer.outputEncoding;
secondaryRenderer.toneMapping = app.renderer.toneMapping;
secondaryRenderer.toneMappingExposure = app.renderer.toneMappingExposure;

const camera2 = app.scene.getObjectByName('Camera')

function bindEnvironment(scene) {
  scene.traverse((obj) => {
    if (obj.material) {
      if (obj.material.isMeshStandardMaterial) {
        obj.material.envMap = scene.environment;
        obj.material.needsUpdate = true;
      }
      if (obj.material.isShaderMaterial) {
        obj.material.uniforms.envMap.value = scene.environment;
        obj.material.uniformsNeedUpdate = true;
      }
    }
  });
}

bindEnvironment(app.scene);

function animate() {
  requestAnimationFrame(animate);

  secondaryRenderer.render(app.scene, camera2);
}

animate();

window.addEventListener('resize', () => {
  const width = container.clientWidth;
  const height = container.clientHeight;
  
  secondaryRenderer.setSize(width, height);
});