You may have come across an order which contains a Bundle as a Product but despite having variants for the products inside the bundle, no variant is shown on the order. Take this bundle for example:

When you click on the add to cart button, the cart will be like the below image:

But sometimes the bundle product itself gets added to the cart incorrectly like the below image:
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You see that the variants (Size, Color) have not been added to the cart and will also not show on the order.

Please check this article to see why this happens.
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