Not sure what my issue is, I am new to Godot and am having a small issue with a rigidbody2d. I have a player with 2 actions can shoot laser and secondary action is a grenade. The grenade is rigidbody2d and shows a somewhat strange behavior only when shooting either left or right but not up or down. I shall attach a video: https://imgur.com/a/R6Wuw1d

Here is my code:

Grenade scene:

extends RigidBody2D
@export var speed: int = 800
var direction: Vector2 = Vector2.UP
func _process(delta):
position += direction * speed * delta

Player scene:

extends CharacterBody2D

signal laser(pos, direction)
signal grenade(pos, direction)

var can_laser: bool = true
var can_grenade: bool = true
var speed = 200
var using_controller: bool = false

func _process(_delta):# Called every frame. 'delta' is the elapsed time since the previous frame
var controllers = Input.get_connected_joypads()
using_controller = controllers.size() > 0
if using_controller:
# Use joystick input for rotation
rslook()
else:
# Use mouse for rotation
look_at(get_global_mouse_position())

var direction = Input.get_vector("left", "right", "up", "down")  # Input
velocity = direction * 800  # Movement speed
move_and_slide()  # Built in function for move and slide againts objects


if Input.is_action_pressed("main action") and can_laser:  # Laser shooting input
	can_laser = false
	$"Laser Timer".start()  # Starts a reset timer from Laser Timer node to reset laser function
	var laser_markers = $LaserStartPositions.get_children()  # Gets the position of the marker nodes that are children of LaserStartPositions node
	var selected_laser = laser_markers[randi() % laser_markers.size()]  #randomly select marker for the laser to start
	# emit the position we selected
	laser.emit(selected_laser.global_position, rotation_degrees)
	
	
if Input.is_action_pressed("secondary action") and can_grenade:
	can_grenade = false
	$"Grenade Timer".start()
	var pos = $LaserStartPositions.get_children()[0].global_position
	grenade.emit(pos, rotation_degrees)

var rs_look = Vector2(0,0)
var deadzone = 0.3

func _physics_process(_delta):
rslook()

func rslook():
rs_look.y = Input.get_joy_axis(0, JOY_AXIS_RIGHT_Y)
rs_look.x = Input.get_joy_axis(0, JOY_AXIS_RIGHT_X)
if rs_look.length() >= deadzone:
rotation = rs_look.angle()
#_____________________________________________________________

func _on_grenade_timer_timeout():
can_grenade = true

func _on_laser_timer_timeout():
can_laser = true

Level scene:

extends Node2D

var laser_scene: PackedScene = preload("res://scenes/projectiles/laser.tscn")
var grenade_scene: PackedScene = preload("res://scenes/projectiles/grenade.tscn")

func _on_gate_player_entered_gate(body):
print("player entered gate")
print(body)

func _on_gate_player_exited_gate(body):
print("player exited gate")
print(body)

func _on_player_grenade(pos, player_rotation_degrees):
var grenade = grenade_scene.instantiate() as RigidBody2D
var direction = Vector2(1, 0).rotated(deg_to_rad(player_rotation_degrees))
grenade.position = pos
$Projectiles.add_child(grenade)
grenade.linear_velocity = direction * 800

func _on_player_laser(pos, player_rotation_degrees):
var laser = laser_scene.instantiate() as Area2D
var direction = Vector2(1, 0).rotated(deg_to_rad(player_rotation_degrees))
laser.rotation_degrees = rad_to_deg(direction.angle())
laser.position = pos
laser.direction = direction
$Projectiles.add_child(laser)

Any insight on this would be much appreciated.