2D Side Scroller Follow AI Help

So I am new so this might be really dumb but i have been trying to set up an ai to chase the player. I have found tons of videos and tried my own but i can not get any to work. I got a lot to work in other 3d modes (i forgot what they are called) but I when i move them to side scroller it brakes. Can someone help?

I am going to follow this thread, hopefull someone ran into this and found a better solution to this.I went with event tick and based decisions on collision boxes.