I'm using the new Report Builder for SSRS in SQL Server 2019, and I'm trying to create a paginated report with one multi-value parameter.
I've given my report two datasets, both from the same shared Data Source. One data set is all the report data, and the other just return as distinct list of keys from the first dataset.
Both queries run and return their expected values in the query designer. However if I create a multivalue parameter and set the available values to a field in that query. I get a blank list every time, and the entire report is also blank, even though I don't have the report configured to do anything with that parameter yet.
What am I missing? I am using the same cached sql login on the report, data source, and datasets, and the query definitely returns values.
If I remove the parameter from the report, then everything works as expected.