[OS X Emacs] Bug with visual-line-down?

[Robert Morelli]

I ran into an unexpected behavior running a keyboard macro with an argument.
The macro has a ctrl-n in it,  but every time it reaches the bottom of 
the window
it fails with:

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
  visual-line-down(1)
  call-interactively(visual-line-down)
  call-last-kbd-macro(10 kmacro-loop-setup-function)
  kmacro-call-macro(10 nil)
  kmacro-end-and-call-macro(10)
  call-interactively(kmacro-end-and-call-macro)