Chapter: testability
Rule: unknownId
Spec: Unknown map id
The map named a control, page, or surface that is not on this screen. Walks and specs that depend on it fail even when the product still works.
The id is missing from the map, so nothing can be clicked on purpose. Not this: the id exists but the locator matches nothing (T-10); the control is still there under a new name (T-11).
This id is stable. Reports link here so T/V/Q classes do not shuffle when a soak ranks differently.