Tree sync issue (bug?)
 

The highlighted item in the tree does not stay in sync with the currently open item. For example, if you click on a different document in the Child Items pane the tree doesn't sync up.

When the Related Items Pane is populated with Info Items, it can be used as a Selection Pane, meaning it can be used to determine what is displayed in the Dependent Panes (such as the Item Details Pane, Item Attributes Pane, etc).

When that occurs the Data Explorer Pane/Search Pane simply remain where they were navigated to last and the Dependent Panes are refreshed to reflect their respective data related to the newly selected Info Item(s) in the focused Selection Pane (in this case the Related Items Pane).

You can determine which Selection Pane is active as only one will have selected Info Item(s).