Sinking through floors and walking through walls

[Kayleigh McMillan]

I have the same:-(
They walk through the sky go through walls and floors.
Although I have a HUD to bring them all home in my skybox (closed and not phantom ofcourse) I decided to disable walk and run as I don't like the idea of wandering around cats.
It can't be lag either as I own a full sim in low use apart from the cats and I have no other lag problems.
Would be nice if this can be fixed in the next update I rather have them walking, running, talking and chasing butterflies:-)