RE: Cats crossed the wall
Cats have done this since Day One.
This is the same problem as cats falling through floors.
The only solution is to home your cats in the center and set their range so that they cannot TOUCH the wall. (If they DO touch the wall, they can go through it and move OUTSIDE the wall AND the set range.)
Any cats which do get outside the range and wall will, of course, jump home when they go to sleep.
Years ago, as a test, I set up the walls so that the cat was forced to move diagonally across an entire sim (over 300 meters away from its home), even though the range was only 10 meters. KittyCatS Resident and I spend several hours working the problem and determined there is really nothing to be done about it without completely redesigning how KittyCatS move and interact with the world.
You can try multiple walls, say 1 meter thick, overlapping with the centers spaced 0.1 meters apart. Those cats which make it through the first wall surface will hit the second; but some till also wiggle through the second. Each layer added reduces the chances of making it through all walls; but there will always remain a chance, no matter how many wall layers you use, that a cat can make it through all of them. In practice, though, two or three walls is good enough.
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