Seems like the legacy HR source’s identities are just switching the identity profile and it is as expected and that’s the reason you are not seeing the issue in existing identities.
For the new HR source, I assume the below could happen
- These identities created via non authoritative source in the backend for holding the uncorrelated account and it will not be visible on UI until you get an account from auth source for those identities.
- If both the sources have not marked the same account attribute as “Account Name”, the identity attribute account name will not be from the auth source. These are expected behaviors.
- Given more details here Account Name Attribute on Identity Details Page is Not Updated - Identity Security Cloud (ISC) / ISC Discussion and Questions - SailPoint Developer Community
Let me know if you still seeing different issue than the above behavior.