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Level 7

Pattern matching catches but pattern not matched.

I have a text pattern for formatted social security numbers, \b([0-6]\d{2})([\D]{1,2})(\d{2})([\D]{1,2})(\d{4})\b 

I am getting hits in DLP but when looking at the evidence files, nothing in there matches the pattern.  I have copied and pasted the entire evidence file into the regex check option on the text pattern dialog and clicked 'check' and it said 'No Matched Found'.  Why would DLP be catching the file based on the pattern but not be able to match it manually?

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