http://gyazo.com/dedb423da6b2d941a47a1b2b3d1bc03c I have no idea what happened here, I was testing CapnObliviouses level, and tried cutting one of them. Touching the invisible part caused my flash player to crash.
I reproduced it, and took a screenshot of the aftermath: http://gyazo.com/04f5a86a8dfa66db2348926a8b684b58
The 3 other invisible parts have disappeared, and my flash player has crashed. I don’t have any information concerning it.