When reviewing the 'Saved view manager' in the 'Multi-Edit Structure' window, some structures may have saved views that are 'Out of date', despite no changes being made to the structures directly since you last updated their saved views.
This is because when you edit a structure and apply changes to it (i.e. rebuild it), any structures that anchor the wires attached to the structure you have just edited will also be rebuilt. This means the saved views of those anchor structures will become 'Out of date' even though they've not been edited directly.
For example, if you edit a structure with one wire attached, the two anchor structures for that wire will also be rebuilt, whilst editing a portal with multiple wires attached will trigger rebuilds of multiple anchor structures.
You can quickly update all 'Out of date' saved views by clicking the 'Select all uncreated and out of date' button, and then clicking 'Update Saved Views'.