Single Property View Crashes when Set to Rotator

Whenever a Single Property View is set to show a Rotator property, the editor will crash.

1. Download and open the attached sample project
2. Open the Editor Utility Widget at the root of the Content Browser. It should be called NewEditorUtilityWidgetBlueprint.
3. Select the widget titled "SinglePropertyView_Rotator"
4. In the Details panel, under the View category, set the Property Name to "Rotator" to match the variable name found within this Editor Utility Widget.
5. Observe the editor Crash.

Assertion failed: IsValid() [Link Removed] [Line: 1030] 

Full crash report attached