Why principal Investigator Lov is blank?

Summary:

We are doing a POC for Grants Management and trying to create an award but somehow Lov for Principal investigator is Blank.

I made sure I have assigned the role of Principal Investigator to myself and also added myself as a resources.

Content (please ensure you mask any confidential information):

Can not find PI in Lov while creating award.

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

23D

Code Snippet (add any code snippets that support your topic, if applicable):

NA