Filter or dashboard prompt issue

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Hi, I wonder if anyone can provide answer to this.

I created a req report which includes names of recruiter. I applied a prompted filter on Recruiter as I planned to use the report for dashboards.

I created my dashboard prompts and used Recruiter too. When I search for a particular recruiter's name it returns no record while for other recruiters I checked it worked.

I then created another report to check what is wrong,I pulled in req no and recruiter name. Filtered on that recruiter only, nothing was returned but the recruiter's record and requisitions are showing in the report.