1) What happened
Simple, error free script appeared to have no effect on the game when exporting to Flash player. Worked fine in normal player, but in Flash, my script did nothing. No warnings or errors were produced in the console during export.

2) How can we reproduce it using the example you attached.
The script filename contained a space. Apparently, the conversion process does a direct mapping from file name to Actionscript class, which can mean invalid class names. Removing the space made the export work perfectly. I attached my project and it should contain everything necessary to reproduce the problem. Really all you need is a script with a space in it that moves the camera, and a camera.

http://answers.unity3d.com/questions/210971/flash-build-does-nothing-at-all.html