Maybe the scan is just hitting the perfectly? I do buy/sell a fair share of cards and have been noticing an increase of cards appear to be "pressed" like a comic. The creases that are pressed out are still visible, but you really, really have to look closely and get it under the right light to catch it -- maybe that's what's happening here? Grader sees the card in hand and it appears clean, but then when it is scanned the issues are highlighted as the "right light" hit it
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