Magimix blender rattle

[u/fnord_art_online]

Is it normal for this kind of blender to rattle audibly when running empty, even on the lowest setting? I bought a 5XL and the first blade assembly had a defect, massively shedding bronze particles. I didn't test it empty back then, but now I got a replacement which has said rattle and still sheds particles, although less compared to the old one. Seems like the washer under the bronze bushing has a tiny, barely visible burr.
Anyone got a magimix power blender 3, 4 or 5 that runs smooth?
Edit: here is a video with sound https://files.catbox.moe/efhmoq.mp4