UMG: Crash When playing an animation with the Same Name as a Widget

Editor crashes when a UMG widget (Text block, whatever) and an animation track share the same name and the animation is played.

NOTE: The Editor will not allow you to name a Widget the same as an animation ("Existing Variable Name" Warning). However, it won't stop you from doing the reverse and naming an Animation with an existing Widget name.

Attached sample project shows the issue

1. Open attached project
2. Open SameName Widget Blueprint
3. Play in PIE. Level BP will create the widget
4. Press Z key to play the animation – Editor crashes

• • In the UMG editor, note that you cannot use an existing Animation name on a Widget ("Existing Variable Name"). But you can name a Widget first and then use that same name on an Animation without getting a warning.

Expected: The Editor should not allow using an existing Widget name for an Animation Track name.