CharacterBody2D unexplicably gets glued to a shape under one particular condition

[gudan]

Godot Version

v4.3.stable.official [77dcf97d8]

Question

I have a super simple rigid body (containing 4 collision shapes) + character setup in which I move my character using

extends CharacterBody2D

@export var walk_speed = 50

func _physics_process(delta):
	var CV : Vector2 = Vector2.ZERO # character velocity
	
	if Input.is_action_pressed("input_R"): CV.x += 1
	if Input.is_action_pressed("input_L"): CV.x -= 1
	
	if Input.is_action_pressed("input_D"): CV.y += 1
	if Input.is_action_pressed("input_U"): CV.y -= 1
	
	velocity.x = CV.x*walk_speed
	velocity.y = CV.y*walk_speed
	
	move_and_slide()

This works as expected other than in one particular context. In the video below, you can see that the character moves in various directions and slides along the edges of collision shapes as expected…

…until, when I go to the right, reach the shape on the far right and collide with it (so the character starts sliding up as expected), after I let go of the control and I press LEFT, the character continues to glide down along the edge of the collision shape!?

What could be causing this?

Things I have tried:
Changing the collision shape used by the character to circle
Changing the collision shape used by the character to capsule
Using world boundary instead of collision polygons on the left and right side of the room…
etc

Always the same result, once the character touches the far right collision shape it gets glued to it, instead of moving to the left when left is pressed.

[lillycherry]

Try changing your CharacterBody2D “Motion_Mode” to “Floating”. I think, move_and_slide treating your movement as it have gravity, so it glues you to floor surfaces.

[gudan]

That solved it, thanks ! I’ll have to study this a bit more, this obviously works differently than I expected