Blank Values in Slicer

Dear Team,

I am getting blank values in Slicer, I have thoroughly verified the data between two related tables but I didn't see missing data.

I dragged the related field into table and verified the data to see if any data is missing in relationship but I couldn't find any data related to this blank in slicer.

Is there any other way to find out the missing data in the relationship?

Thanks,

P.K.Divakar