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Looks like a warranty to me.
Normally when you shift up without spinning the cranks (and thus the chain not actually going up gears) your derailleur stops after 3 shifts since it feels the extra resistance of your chain still being 3 gears back. Looks like exactly the same is happening here, your derailleur somehow gets more resistance than it expects.
So I guess, send it back :)
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If you can push it sideways by hand either the crash protection is disengaged or the internal gear train is borked.
If you look at the photo here (ignore the text), the silver disk on the motor should spin regardless of crash protection and the silver tooth just below “Japan” should be engaged in the slot that’s 180 degrees away in that pic.
That video is mostly of your hands. Does it make whirry noises on each shift? If you push the derailleur cage sideways to where it should be does that help?