The use of context filter may be the reason for this.
Can you remove RB1 from context and try the same filtering once.
If it is not a real use of keeping the context filter in your view where you are having to use Attr or other such aggregated calculations, better not to use the filters in context.
Thanks for your response. It doesn't seem to be the context filter. I tried removing that but facing the same issue. Looks like this issue is prevalent only with single-select quick filters.
Show relevant values do not work for Secondary source filters in data blending case as well. I works well if the filters are from the same data source.
Yeah, they are all from the same data source.
I added two of the filtered fields to Context and ended up using 'Show all in Context and Hierarchy', which helped.