See/Submit bugs for the BGE or blenderplayer

Go to:
http://projects.blender.org/tracker/index.php?func=detail&aid=29610&group_id=9
and select Game Engine.

See http://blenderartists.org/forum/showthread.php?255832-Dev-GSoC-2012-BGE-Fixup-Converter-Improvements-Feedback-Thread
for more info on BGE bugs.