1 files changed, 19 insertions, 3 deletions

diff --git a/js/helper-classes/3D/snap-manager.js b/js/helper-classes/3D/snap-manager.js
index 5b467b41..a401c363 100755
--- a/js/helper-classes/3D/snap-manager.js
+++ b/js/helper-classes/3D/snap-manager.js
@@ -123,7 +123,8 @@ var SnapManager = exports.SnapManager = Montage.create(Component, {
         ///////////////////////////////////////////////////////////////////////
     initialize: {
         value: function() {
-            this.eventManager.addEventListener("elementDeleted", this, false);
+            this.eventManager.addEventListener("elementsRemoved", this, false);
+            this.eventManager.addEventListener("elementReplaced", this, false);
         }
     },
 
@@ -163,12 +164,26 @@ var SnapManager = exports.SnapManager = Montage.create(Component, {
     },
 
 
-    handleElementDeleted: {
+    handleElementsRemoved: {
         value: function(event) {
-            this.removeElementFrom2DCache(event.detail);
+            var self = this, elements = event.detail;
+
+            if(Array.isArray(elements)) {
+                elements = Array.prototype.slice.call(elements, 0);
+                elements.forEach(function(element) {
+                    self.removeElementFrom2DCache(element);
+                });
+            } else {
+                this.removeElementFrom2DCache(elements);
+            }
         }
     },
 
+    handleElementReplaced: {
+        value: function(event) {
+            this._isCacheInvalid = true;
+        }
+    },
 
     setCurrentStage: {
         value: function(stage) {
@@ -489,6 +504,7 @@ var SnapManager = exports.SnapManager = Montage.create(Component, {
                                 var n = this._elementCache.length;
                                 this._elementCache[index] = this._elementCache[n-1];
                                 this._elementCache.pop();
+                target.elementModel.isIn2DSnapCache = false;
                                 found = true;
                         }