add a contact
When adding contacts from the "untracked emails" area, it imputs the last name with a comma in the first name box. Please see if having the first name input in the first name box and the last name input in the last name box.
We tested this out and it should work correctly, pulling in the first name into the First name field and the last name from the email into the last name field.
Can you try another one and let us know if you are still running into any issues. If you need any further help just send us an email at email@example.com