Currently, undoing some hierarchy changes made with a Storyboard active can cause Studio to Crash.

See attached video.

Please note that this issue is the Ticket associated with Bugsplat BS1586.

Please note that the attached project to repro within contains no images and fonts as seen in the attached video in an effort to fit the file within the ticket.

Repro Steps:

1) Download, and open the attached Project in Noesis Studio.

2) On the MainPage, open the Template for the ContentControl/Content Template on the right of the screen.

3) Within that, edit the Template for the ContentControl/Content (single tile) on the screen.

4) Open the Animation Panel, and select the 'Hovered' VisualState. Stay in this Visual State for the following steps.

5) Expand the Navigator hierarchy, and find the Grid named ImageMask_Grid. Expand it to see the names of the Border Elements included within it.

6) With ImageMask_Grid selected, from its context menu, navigate to Layout->GroupInto->Viewbox

6) Press Ctrl+Z or Edit->Undo.
Observe how the Borders in the Navigator have lost their names and don't match the Border names inside of ImageMask_Grid.

7) Click on any of the [Border] Elements in the Storyboard.
Observe Studio crashing.

Expected Results: Users are not permitted to make Hierarchy changes inside of a Storyboard OR Users are permitted to make Hierarchy changes in a Storboard without causing a crash.