Display name not reflecting correctly on the employee login page

Hi All,

I made changes to the person name format (display name, full name, list name). The name format is - Full Name Middle Name Last Name. I ran the required processes. Post which the name format reflects correctly in TEST POD. However, in production, The required name format is reflecting correctly on person management etc. However, the required name format is not reflecting correctly on the employee self service login page (Home screen). Instead of First Name Middle Name Last Name it is still reflecting First and Last name.

Could someone please guide on the same.

Regards,

Muskaan