Steps to reproduce:
This was using 1.4.0, Windows 7 64bit.
I believe it was using the gstreamer lib, though I'm not 100% sure about that.
OK, here's an update.
This has been tested on Kivy 1.4.0 on both Windows 7, and OS X Lion
Is anything going to be done about this? I'm experiencing this problem even with 1.5.1.
@arup14 are you on windows/mac OSX? Could you test by re-sizing the window after you re-play the video, does that make any difference?
video/gstreamer: make video stop/play work on window. closes #663