XR Interactor Reticle Visual not working with UI

I'm trying to create a reticle object using XR Interaction Toolkit for both 3D and UI interaction. I've setup my scene just as described here, but instead of using a XR Ray Interactor with a XR Interactor Line Visual (which works fine on the UI), I'm trying to use a XR Interactor Reticle Visual. This doesn't work on the UI, but if I add a 3D object with a XR Grab Interactable it works as intended. Is this behavior by design or unusual, because for me it's rather strange?

This is the inspector view of the Reticle game object.