When a measure has "best value" (e.g. 100% coverage or 0% undocumented public api), its value is not passed by api/resources/index and therefore not displayed:
- in component viewer's "Show Measures" window
- when drilldown by the dashboard treemap widget
Because api/resources/index is deprecated, the solution is to use new api which doesn't suffer from the same issue: api/measures/component and api/measures/component_tree.