Fix Inspector Dynamic Loading.

dist/preview release/what's new.md

@@ -116,6 +116,7 @@
 - Added a `DeepImmutable<T>` type to specifiy that a referenced object should be considered recursively immutable, meaning that all its properties are `readonly` and that if a property is a reference to an object, this object is also recursively immutable. ([barroij](https://github.com/barroij))
 - Fixed `VideoTexture` poster property when autoplay is turned off.
 - Fixed position and rotation of plane mesh created by MeshBuilder.CreatePlane when specifying a source plane ([sable](https://github.com/thscott), [bghgary](https://github.com/bghgary))
+- Fixed inspector dynamic loading ([Sebavan](https://github.com/Sebavan))
 
 ### Viewer
 

src/Debug/babylon.debugLayer.ts

@@ -164,7 +164,7 @@ module BABYLON {
          * @returns true if visible otherwise, false
          */
         public isVisible(): boolean {
-            return this.BJSINSPECTOR.Inspector.IsVisible;
+            return this.BJSINSPECTOR && this.BJSINSPECTOR.Inspector.IsVisible;
         }
 
         /**