diff --git a/src/core/renderers/webgl/TextureManager.js b/src/core/renderers/webgl/TextureManager.js
index ba892bd..b685c1a 100644
--- a/src/core/renderers/webgl/TextureManager.js
+++ b/src/core/renderers/webgl/TextureManager.js
@@ -68,7 +68,6 @@
     {
         // assume it good!
         // texture = texture.baseTexture || texture;
-        location = location || 0;
 
         const gl = this.gl;
 
@@ -79,6 +78,29 @@
             return null;
         }
 
+        const boundTextures = this.renderer.boundTextures;
+
+        // if the location is undefined then this may have been called by n event.
+        // this being the case the texture may already be bound to a slot. As a texture can only be bound once
+        // we need to find its current location if it exists.
+        if (location === undefined)
+        {
+            location = 0;
+
+            // TODO maybe we can use texture bound ids later on...
+            // check if texture is already bound..
+            for (let i = 0; i < boundTextures.length; ++i)
+            {
+                if (boundTextures[i] === texture)
+                {
+                    location = i;
+                    break;
+                }
+            }
+        }
+
+        boundTextures[location] = texture;
+
         gl.activeTexture(gl.TEXTURE0 + location);
 
         let glTexture = texture._glTextures[this.renderer.CONTEXT_UID];
@@ -158,8 +180,6 @@
             glTexture.upload(texture.source);
         }
 
-        this.renderer.boundTextures[location] = texture;
-
         return glTexture;
     }