QR Code quality suddenly bad

I created a qr code and it looked fine. Suddenly the quality decreased. The sqaures are crooked and not filled correctly. I have no idea why this happens. Any ideas?

Before

After

Cut settings

QR Settings

I have a Longer Ray 10W laser.

Just an observation, you are showing a speed of 3000mm/s which would appear to be way to much, and faster than your machine is probably capable of.
With my diode machine I work in mm/m.
Try dramatically reducing the speed and see if things improve

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I switched to mm/m and it worked. Thank you very much.

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