One entity field that the metadata promises but the entity's base view does not produce. The runtime selects fields by name, so each of these makes the entity unreadable — and a grid renders that as "no data" rather than an error.
Entity.BaseView (e.g. "vwEntities")
Entity.Name (e.g. "MJ: Entities")
EntityField.Name that the view does not expose.
True for join-sourced/computed fields, false for plain base-table columns.
Entity.SchemaName (e.g. "__mj")
One entity field that the metadata promises but the entity's base view does not produce. The runtime selects fields by name, so each of these makes the entity unreadable — and a grid renders that as "no data" rather than an error.