If a segment becomes invalid or gets damaged it will be unusable.
In editing mode, a segment in the catalog is disabled, and the segment icon has a circle around it.
Nested SegmentThe segment is contains a segment and cannot be added to another segment. For example, SegmentA can contain SegmentB, but SegmentA can't be added to SegmentC because it already contains a segment.
|A nested segment can be used in exploration, but it cannot be used in the definition of another segment. Nor can more segments be added to is definition. You can copy the segment and remove nested segments from its definition to edit non-destructively.|
Invalid ReferenceA segment, event, or attribute referenced by the segment is not valid for the current profile or has been deleted.
|Read the description of the segment in the information panel. If you are
sure that the invalid references can be deleted, Edit the segment
and delete the invalid reference.
Caution: Do not delete invalid references if you are unsure how the segment is used. A reference that is invalid in one profile, may be usable in a different profile.
|A segment is disabled and can't be dragged onto the canvas, but it doesn't appear to be nested or contain an invalid reference.||
||None. This is expected behavior.|