Incorrect extraction date of birth (Candidate)

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Hi all ,

we are experiencing a problem regarding the extraction of the age of birth of the candidates.

As you can see from the attached screenshots , the created otbi extracts the dates of birth , but this is not for all the candidates, we can't understand why this happens as the candidates are all created in the same way.

We would like to know if anyone has experienced the same problem, is there a need to run some batch, or some modification, or is it a bug.

I am attaching two test cases, and also the OTBI analysis for the extraction.