A list with a choice list cannot be filteredDescriptionA list (glide_list) with a choice list cannot be filtered.Steps to Reproduce On a Helsinki or Istanbul instance using the List v3 plugin: Navigate to Incident > All.Click the Personalize list icon .Add the Watch list column.Expand the quick search filter.Note that the Watch list is grayed out and not searchable. On a Fuji or Geneva instance using the List v2 plugin: Navigate to System Definition > Dictionary.Create the filter [Table] [is] [kb_knowledge].Click Run.Click New.Create the following dictionary entry: Type: ListColumn Label: Type of AgentColumn Name: u_type_of_agent Click Submit.Navigate to Knowledge > All.Open any record.Right click on the Type of Agent field label.Select Configure Choices.Add three choice values.Click Save.An alternative to steps 7-12 is to add hard-coded choice values on the Type of Agent sys_dictionary record.In the Type of Agent field, select an option from the choice list.Click Update.Navigate to Knowledge > All.Attempt to filter on: [Type of Agent] [is] [<anything>].Note the following errors: Page not foundThe page you are looking for could not be found. WorkaroundThis is expected behavior. All glide_list fields (for example, Watch list) need a reference value to a table and cannot be used in the quick filter list view (they appear grayed out). Glide List columns can be queried in a list expanding the breadcrumb filter with only the operators 'is [not] empty' and '[does not] contain'. The following article contains an example script that can be used to implement a more advanced filter on a Glide List: KB0596181: Interacting with a Glide List fieldRelated Problem: PRB624779