Help with Area2D collision

Godot Version

4.3

Question

I am currently following a youtube video on how to make pong and am stuck on the scoring mechanic. I have an area2D object for the left and right borders of my pong game with the collision layer and mask set to 1 for both. The top and bottom borders are set at collision layer and mask 2 for both to avoid any unintended behavior with the borders colliding. My ball’s collision layer is set at 1 and mask is set at 1 and 2 so that it can interact with both the bouncing walls and the scoring walls. I made sure to connect the left and right borders to main.gd using the body_entered signal too. However, I noticed that the initial code I had, which was to update the score, did not function correctly. I thought it may have to do with the HUD update functionality or something so I added a print statement to see where the code was getting to. With the addition of this print statement, I came to realize that the function was not even running when the ball (staticbody2d object with collision layer set at 1 and mask set at 1 and 2) hit the left or right border. What could be the issue? Thank you for your help. Here is the code:

extends Sprite2D

var score := [0,0]
var PADDLE_SPEED: int = 500 


func _on_ball_timer_timeout() -> void:
	$Pong_ball.new_ball()

func _on_score_left_body_entered(body: Node2D) -> void:
	print(body.name) # test to see what body is supposed to be (doesn't print)
	print("hello") # print statement to check functionality of the code
	score[1] += 1 # cpu score update
	$Hud/cpu_score.text = str(score[1])
	$ball_timer.start()

func _on_score_right_body_entered(body: Node2D) -> void:
	print(body.name) # test to see what body is supposed to be (doesn't print)
	print("hello") # print statement to check functionality of the code
	score[0] += 1 # player score update
	$Hud/player_score.text = str(score[0])
	$ball_timer.start()

Fixed it. The issue was that the tutorial was in 4.1 as opposed to the 4.3 I’m using. The specific difference was with the ball being of a static2d object, which I’m assuming is no longer detected by the area2d (at least in the way that I set it up). Lowkey I had to cheat to find this in that I needed to download the tutorial, run it, and cross-check the differences so if anyone has a more sophisticated problem-solving methodology for issues like this, please let me know.