missing internal name information

Hello,

Reaching out to anyone who may have seen this issue. A person fills out the web portal form to insert a user and it allows the field to get populated. The internal name does not generate like the first name is missing and the central account is not generated. When i open manager I see that the first name is in the field but it act's like it is not and will not generate the centralaccount name. I'm not sure how this started. I don't see any recent changes that might have caused this and not sure where in the logs to look. Any suggestions on what logs to review or how to troubleshoot this? In order to get the username generated I have to put a new value into the first name to replace what is there then correct the firstname after.

Thanks for any help or information anyone may have.

Lu