I am trying to take advantage of views in Dataverse to limit results in my PowerApp. Finding it much easier and cleaner to create a view than building a complex Filter on a data table. But for some reason I cannot apply a filter on two columns in the view: SalesDate and OrderQty. The table definition shows them as a Date and Numeric field and I can filter them on my data table but both fields Filter by option are greyed when I select the column properties:

The core ID and and Created on columns allow Filter by.
Appreciate any assistance.