This is not a huge issue - but in case you never noticed it, here goes:
When Toy & Teacup kittens grow up, they "hover" a bit more for each day they grow. It is as if they follow the "normal growth patterns" when it comes to distance to ground, but obviously don't grow as big as normals.
When I have a toy or teacup kitten, I edit it down to the ground manually every day and set it's home again - it is the only "workaround" I found
If this is easy to fix, it might be a good thing to do in a future update? :-)
Saga