Weird character in a bitcoin address

Why is the third character of this bitcoin address funky? It isn’t a lower-case ‘x’. Copied and pasted from a block explorer: 38x1VqUjQ1LPNrKNcSJMpkLAfcEF6kenX7 – you can’t see the difference in most fonts but if you paste this into you’ll see it.

EDIT: here is how it displays for me. Note the difference between the ‘x’ in this address and the ‘x’s in the other addresses visible in the same transaction below.

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