This issue is probably happening because the filter category was left empty on the employee's profile.
You have to be a super admin to add filters. If you are not super admin, contact the super admin of your company and ask them to follow these steps:
1. When in the Onboardees/Offboardees' page, select "no filters" in the filter box:
2. You should be able to find the email;
3. Go to actions -> edit;
4. Check the filters and add the ones missing.
If you still have questions after reading this article, don't hesitate to contact us by submitting a ticket.
We're always happy to help ! :)