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That's probably the Unicode "REPLACEMENT CHARACTER", which means that, somehow, the character isn't displayable.
We'd have to see the detailed dissection of the packet, and the hex dump, to see why it's not displayable.
That's probably the Unicode "REPLACEMENT CHARACTER", which means that, somehow, the character isn't displayable.
We'd have to see the detailed dissection of the packet, and the hex dump, to see why it's not displayable.