Ink Mark on Mew inside PSA Case? Is it a Misprint?

Hey guys so I just purchased this card and I was curious if anyone has any idea what happened here. I thought the ink was on the PSA case when I bought it but the mark is on the card itself now that I see it. Unless I’m just having a really off day here. :face_with_spiral_eyes: I’m not upset about the purchase at all I think it’s really interesting. Would a card with an ink mark like this go through grading and still qualify as a PSA 9?
It Looks like a little poke ball mark


Looks to be the rare mew blood error card.

In all seriousness, that is strange indeed.

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thought I’d give it one more shot to see if anyone knew anything about it?