Why did my microblading turn like a tattoo? (photo)

I did microblading with a professional certified technician. But when it came to me, it all went wrong! The hair strokes that she made disappeared and the color became foggy turning like a tattoo! Even when she did the retouch 4 weeks later, the result was the same! She was surprised that this was how it came up. She never had such a case where the hair strokes just disappear. She said maybe because I have oily skin and I'm Arab. Could anyone explain to me why this happenned?

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