RealityKit Character Skeleton animation weapons are not animating

Hello, I am experiencing an issue with a character animation using RealityKit. I have a file created in Blender that contains the rigged Character, a sword, and a shield. The sword and the shield have bones connected to the character's hands so they can follow the character's animation. When I run the animation in Blender and preview the exported USDZ file on Mac, I can see the sword and shield attached to the hands and the animation is fine. But when I add the USDZ model in RealityKit and play the animation, only the character is animating, the sword and the shield are not moving at all.

This is the code I use to animate the character:

private func loadAnimations() {

let unifiedAnimations = children[0].availableAnimations.first!.definition
let animationResource = try! AnimationResource.generate(with: unifiedAnimations)

self.children[0].playAnimation(
    animationResource.repeat()
)
    }

Here is a link with a Demo Xcode project, the Blender file, and a video: https://www.dropbox.com/scl/fi/ypq2iwxc5f9dwzjggsvin/AppleTest.zip?rlkey=wiag3rg44urhjdh2wal8cdx2u&st=vbpf7x11&dl=0

STEPS TO REPRODUCE

I have created a demo project that displays the character on a horizontal surface, and the animation starts playing.

1. Run the App. The ARView will be set up, and a yellow square will appear in the middle of the screen.

2. When a horizontal surface is detected the yellow Square will change indicating that the surface is found.

3. Tap on the screen to load the USDZ model and position it in the yellow square's position.

4. The Animation will start playing and you can see that the character is animating, but the sword and shield remain still.

Thanks