LookML Filter Field does not filter null values

[ericvela]

In my looker instance, there is a filter only field defined in the LookML (called “feedback_selection_filter”) that I am trying to use on my explore. The underlying non-filterable field is named “feedback_selection”

However, when I use the “feedback_selection_filter”, I don’t want to return records where the value is “No Feedback”. I set the filter on the explore so that the value  “is not null” and “is not equal to “No Feedback”, but I am still seeing results returned with “No Client-SKU Feedback” despite the filter saying otherwise.

One thing to note:

When the underlying “feedback_selection” field is null, there is a COALESCE function that treats null values as “No Client-SKU Feedback.” I think this is the reason as to why I am unable to get the filter version of the field to work. I am unsure how to fix this currently

Blurred out irrelevant information.