Name field of persons view are changed by IFS for a specific date

Hi All!

Here is an issue on person view (PERSON_INFO_ALL). The name value is replaced by other field value only on a specifica date ¼/2023. FIRST NAME become TITLE and LAST NAME become (Another field value).

How it is possible that the two fields (Title and another) may slip in mass to FIRST NAME and LAST NAME FIELD?

Thanks to any insight on this subject.