On Tue, Jan 28, 2014 at 10:54 AM, Glenn Morris <rgm@gnu.org> wrote:
Darren Hoo wrote:

> open /Applications/Emacs.app --args -q
>
> the emacs icon on the fancy splash screen (*GNU Emacs*) is missing, try to
> increase the frame size a little bit then press `c-h c-a', the icon is back,
> however if decrease the frame size to some size less or equal to the initial
> startup size and press `c-h c-a' the icon is lost again.

I don't think this is a bug, and AFAIK it has been like this for some time.
The image is not shown if the frame seems to be too small.
See use-fancy-splash-screens-p.

OK, I see.
Though use-fancy-splash-screens-p is not strictly correct on this.
If  I force it to use splash screen:

(defun use-fancy-splash-screens-p () t)

And examine these values of the splash screen on the initial startup 
frame:

(window-pixel-height)
 => 476

(cdr (window-text-pixel-size
      (selected-window) nil nil nil nil t)) ; include mode-line
 => 462

it has plenty room for display.