Filters such as 'is not one of', and 'is not' do not filter out empty values.Issue Most filter operations do not return empty fields in their result set. If the filter such as 'is not one of', 'is not' is used, the system is making the incorrect assumptions that there has to be a value in the field. It does not eliminate the empty values. ReleaseAllCauseIt is expected behavior.ResolutionTo resolve the issue, use 'or' condition to filter out the empty values in addition to the existing one. Refer to the below documentation for more details. Filtering on empty fields