https://infoqubeim.com/drupal5/node/2043 - sidebar nav tree shows two "4." items under "2. InfoQube User Interface"  - "4. Other Views (Card, Timeline, Pivot, etc)" and "4. Document Pane".

AppFiles\Welcome.sndb item 2285 "4. Other Views (Card, Timeline, Pivot, etc)" has two parents so that it appears in two places in the outline.  With the "4." numbering it appears out of sequence.