Button Tap Fires all buttons

Hello all:

I have a very simple IOS app in Swift that has 3 buttons on it. I used the assitant editor and teh <ctrl> key click and drag to create the functions for the buttons:

@IBAction func button1_Tap(_ sender: Any){ print("Button 1") }

@IBAction func button2_Tap(_ sender: Any){ print("Button 2") }

@IBAction func button3_Tap(_ sender: Any){ print("Button 3") }

but for some reason, tapping any of the buttons fires all 3 functions.

Any ideas are appreciated!

John.