Its an app that was developed by a user, so I am not really sure what that chart uses for expression, but it is a straight table with expressions. So I am sure it must be using aggregations.
I guess the point is that when I did not have it as dimension, it was not filtering out, but when I did add it as a dimension it worked. But while I was typing my response, another thing came to mind. I think you might be right, but let me test it out on Monday before I can let you know if it worked or not.
Best,
Sunny
