Level BP causes GLEO on level duplicate

NOTE that this error doesn't occur for class blueprints (and trying to duplicate them), or after you remove the delegate reroute node.

1. In a level Blueprint, create the graph pictured in the attached image
2. Make sure there is a reroute node between the custom event and binding
3. Save the level
4. In the content browser, right click on the level and select 'duplicate'
5. Name the new level and hit enter
6. Observe as the new level attempts to save

RESULT: A GLEO error pops up, saying the level wasn't able to save