About Incomplete Features
Some models created in versions earlier than Wildfire 3.0 could contain incomplete features. You can identify incomplete features in the Model Tree by the 
icon in front of the feature name. Incomplete features are listed in the Feature Attributes column of the Model Tree as Incomplete.
icon in front of the feature name. Incomplete features are listed in the Feature Attributes column of the Model Tree as Incomplete.An incomplete feature is not finished, so geometry cannot be created for the feature. Feature creation is suspended, without losing data that you have already defined. An example is a feature that is missing geometric references. You can add the references later when they become available, and finish the feature.
An incomplete feature differs from a failed feature. It is intended to be left unfinished until the design intent is clarified or geometry it depends on becomes available. A fully defined feature cannot be made incomplete.