Still broken, but app runs

platform/core/src/services/DisplaySetService/DisplaySetService.js

@@ -1,7 +1,7 @@
 import pubSubServiceInterface from '../pubSubServiceInterface';
 
 const EVENTS = {
-  DISPLAY_SETS_ADDED: 'event::displaySetService:displaySetAdded',
+  DISPLAY_SETS_ADDED: 'event::displaySetService:displaySetsAdded',
 };
 
 const displaySetCache = [];
@@ -81,11 +81,8 @@ export default class DisplaySetService {
     }
 
     // If array of instances => One instance.
-
     let displaySetsAdded = [];
 
-    debugger;
-
     if (batch) {
       input.forEach(instances => {
         const displaySets = this.makeDisplaySetForInstances(instances);
@@ -99,12 +96,12 @@ export default class DisplaySetService {
     }
 
     // If array of array of instances
-
-    this._broadcastChange(EVENTS.DISPLAY_SETS_ADDED, displaySetsAdded);
+    if (displaySetsAdded && displaySetsAdded.length) {
+      this._broadcastChange(EVENTS.DISPLAY_SETS_ADDED, displaySetsAdded);
+    }
   };
 
   makeDisplaySetForInstances(instances) {
-    debugger;
     const instance = instances[0];
 
     const existingDisplaySets =