Can see the candidate name on the Req but unable to open or find on candidate search

Summary:

We have a recruiter trying to work an applicant but when they click on the applicant within the req they get an error message. they arent able to find the candidate within the candidate search. This is an internal candidate so the candidate profile wouldn't have been able to be merged. its like the candidate profile is just gone.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

On the req we see below - this is an internal applicant

When we select the candidate within the req we get the below message