4K Motion Blur problems on Vizio V405-G9

[SpazeBlue]

Setting up a TV for somebody, and everything seems fine, except for one thing. There's a pretty bad Motion Blur(? best way to explain it) problem. I noticed it watching Mulan on 4K, then confirmed it with The Incredibles. Odd thing is, while the problem is definitely there when viewing the 4K disc, when I tested the Blu-ray disc for Incredibles (with 1080p settings), it wasn't there.

4K motion blur examples (pictures make it a bit more noticeable, but still bad in motion)

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Also in this scene particularly, it causes a frame to be carried over to the next shot. It's only there for half a second, but still noticable.

Frame before:

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Next shot with frame carried over:

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Then the Blu-ray

No motion blur (looks a bit blurry due to taking picture when in motion):

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No frame carried over:

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TV Settings for 4K (1080p is same, except backlight is changed to 68)

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Sony UBP-X700 4K Settings

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Sony UBP-X700 1080p Settings

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