Having new records added to GI prompt an import scenario business event

I created a GI that monitors SO Lines for items that are “Explodable” which are designated via an item attribute. 

I’m new to creating business events but I want an import scenario to run when new records are added to this GI. When the items are exploded the “Explodable” item is deleted from the sales order, thus not returning to the GI that monitors sales order lines. 

Do I have my business event set up correctly? I can’t seem to get it to fire. 

 

XML Attached

The import scenario itself operates as expected.