Fix texture serialization issue

src/Materials/Textures/texture.ts

@@ -701,7 +701,7 @@ export class Texture extends BaseTexture {
             } else {
                 var texture: Texture;
                 if (parsedTexture.base64String) {
-                    texture = Texture.CreateFromBase64String(parsedTexture.base64String, parsedTexture.name, scene, !generateMipMaps);
+                    texture = Texture.CreateFromBase64String(parsedTexture.base64String, parsedTexture.name, scene, !generateMipMaps, parsedTexture.invertY);
                 } else {
                     let url = rootUrl + parsedTexture.name;