The World Builder and the Constructor now have 64bit versions available.
If you are running any Windows OS and it is 64 bit, the new version should download to your system automatically. You will now see a "64bit" suffix added to the version name when the apps are started.
Updated all the apps and tools to work with Unity 5.2.2f1
New Scene Loader has been made and the bug that was affecting the skybox material has been fixed. Works with Unity 5.2.2 too.
New Asset Packager has been made and the collider bugs that occurred in the creation of asset packs is no longer an issue. Works with Unity 5.2.2 too.
World Builder and Constructor app loading is much faster now.
Enjoy..