In the Modern UX, Project Tiles filter for "Active" is missing a selectable value for "--All--".
However, in the Project Grid, this value is present:
The Project Tiles was designed before the generic components was built and filtering was implemented different for those. Project Grid uses the generic components, but the Project Tiles does not.
This issue has been reported for Clarity 15.8.1.
Both portlets are behaving as designed. Eventually, the Tiles page will be updated or refactored and this behavior will be revised.
In both portlets, filtering by '--All--' can be achieved by removing the attribute from the filter (filtering an attribute by '--All--' is the same as not filtering by that attribute).