Ummmm. No there was never any such rule. I've been playing this game for darn near a decade now.

I could have sworn it was in the Icons rules document (when I started playing), but I've realized that some of the "rules" I was taught back then where houserules.Though I do remember reading this one, I thought.

You're mistaken.

Perhaps you are confusing it with the rule that says you must have a range higher than 0 to make a ranged attack.

Perhaps, but believe it or not I was told that was an old rule and you could perplex your range to 1 and shoot a flyer (like I said previously, lots of bad "rules".)

Depending what exactly you mean, that last part was probably correct way back then.