[iOS] ViroPortalScene interior content not rendering in v2.53.0

[meianuraluca]

In v2.53.0, on iOS, the interior content of ViroPortalScene does not render at all.
The portal frame is visible and the stencil hole is created correctly, but through the
hole only the camera feed (AR background) is visible instead of the portal's interior
world (Viro360Image, Viro3DObject, ViroBox, etc.).

The same code worked correctly before the SDK and package update.

Environment

@reactvision/react-viro: 2.53.0
expo: 54.0.33
react-native: 0.81.5
Platform iOS only (Android ✅ works)

  <ViroARScene
    position={this.state.objectPosition}
    removeClippedSubviews={false}
    onTrackingUpdated={this._onTrackInit}
  >
    <ViroDirectionalLight color="#ffffff" direction={[0, -1, -0.2]} />

    <ViroAmbientLight color="#ffffff" intensity={200} />
    {variant === 'park' ? (
      <ViroPortalScene
        passable={true}
        visible={this.props.arSceneNavigator.viroAppProps.displayObject}
        removeClippedSubviews={false}
      >
        <ViroPortal position={[0, 0, -3]} scale={[0.1, 0.1, 0.1]} onDrag={() => { }}>
          <Viro3DObject
            position={[0, 0, 0]}
            source={{ uri: FileSystem.documentDirectory + 'portal_ship.vrx' }}
            type="VRX"
            scale={[6, 5, 0.2]}
            visible={this.props.arSceneNavigator.viroAppProps.displayObject}
            rotation={[0, 0, 0]}
          />

          <Viro3DObject
            position={[0, -18, 0]}
            source={{ uri: FileSystem.documentDirectory + 'Portal.vrx' }}
            type="VRX"
            scale={[0.1, 0.1, 0.1]}
            visible={this.props.arSceneNavigator.viroAppProps.displayObject}
          />
        </ViroPortal>
        <Viro3DObject
          visible={this.props.arSceneNavigator.viroAppProps.displayObject}
          removeClippedSubviews={false}
          source={{ uri: WORLD.model }}
          type={'VRX'}
          position={WORLD.position}
          rotation={WORLD.rotation}
          scale={WORLD.scale}
        />
        {this._getModel()}

        <Viro360Image
          source={{ uri: FileSystem.documentDirectory + '360_world.jpg' }}
          format="RGBA8"
        />
      </ViroPortalScene>
    ) : (
      this._getModel()
    )}
  </ViroARScene>