Rule builder not showing suggestions

Problem

While defining a rule, Rule builder not sowing suggestions while typing in a keyword:

Steps to troubleshoot

The suggestions are enabled for some of the field types:

• Facets

Check the field configuration. The above example is for 'Color' field which probably is a facet, if that's the case make sure that the associated facet is created.

• City, State, Country , Landing Page, Browser Name, Bucket

Those fields are available under Visitor Targets/Personas. The possible values are immutable and predefined.