I think Midway just made it that you turned invisible again, so it just show an explosion. If you want a good answer, MK2KungBroken will know.

Unfortunately I don't have an answer for it because Smoke's U U R invisibility can be turned on and off by doing the motion, while Reptile's cannot, I think it was a mistake they never decided to correct, cause honestly, once you turn invisible, why would ever not want to be? A good Reptile player knows where he is even when he's invisible, and I can usually tell where a Reptile player is as well depending on the sounds and shit that give it away when they jump etc, at the tourny recently I played that Reptile player and beat him before the actual tournament and he was like "Damn how the Hell did you know where I was?" I did because it's where I would have been in the given situation lol.

Matt