on I-9 Approval Status screen, in Form I-9 Employment Eligibility Verification popup Error 'Hire Date is required' displayed in below scenario :

1. Restore company and create employee 'Elaine Goodell' as per data given in case 3
2. In employee flow, submit form as per data given in case 3
3. In partner login, on I-9 Approval Status screen, open this case and save section I, in the 'Form I-9 Employment Eligibility Verification' popup
4. On save button, error message 'Hire Date is required ' is displayed
PFA screen shot