Big Cats get an update to version 3.0.0. In this update your Big Cats get a bit smarter hard to believe they can learn anything more but they have. They can now see with out the added scripts a physical prim and walk over it just like an avatar instead os sinking into it. They no longer need to be set to skybox so this option has been removed. The updaters if you have one are available in an updated version via MOOG and you still have the updated MOOG versions of the boxes themselves. Choose which ever manner you like to update but you will want to make sure to get them updated.