This is because your tooltip is using just sum(count) for both rows. Tableau doesn't know how to split up the genders because all you've done is just type in 'Female' and 'Male' in the text:
Make a new sheet with the gender and count:
Then add this in as a viz in tooltip:
So then you get this:
Thanks and please see the attached workbook.
October.twbx 91.4 KB
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