Tween don't go to correct position

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1

Godot Version

4.3

Question

So i want to create a waiting animation for a platform in my game. Pretty simple just some up and down movement, but the tween don’t work correctly.
it should get back to the start position so it’s a loop. But it stopped 0.1 pixels before.

func _ready():
	start_position = global_position
	waiting_animation()

func waiting_animation():
	var random_offset:Vector2 = Vector2(0,randi_range(8,13))
	var time:float = 2
	
	if moving_constanty == false and stop_waiting_animation == false:
		print("TTTTTTTTTTTTTTTTTTTT")
		print(start_position)
		print(global_position)
		if global_position == start_position:
			await get_tree().create_tween().tween_property(self, "global_position",start_position+random_offset,time).set_ease(Tween.EASE_OUT).set_trans(Tween.TRANS_BACK).finished
			await get_tree().create_tween().tween_property(self, "global_position", start_position,time-0.5).set_ease(Tween.EASE_IN).finished
			await get_tree().physics_frame
			call_deferred("waiting_animation")
		elif global_position == end_position:
			await get_tree().create_tween().tween_property(self, "position",end_position+random_offset,time).set_ease(Tween.EASE_OUT).set_trans(Tween.TRANS_BACK).finished
			await get_tree().create_tween().tween_property(self, "position", end_position,time-0.5).set_ease(Tween.EASE_IN).finished
			await get_tree().physics_frame
			call_deferred("waiting_animation")

the outprint is
output

So it gets called two times. But for some resaon it don’t gets back to starting_position

			await get_tree().create_tween().tween_property(self, "global_position", start_position,time-0.5).set_ease(Tween.EASE_IN).finished
			await get_tree().physics_frame #i thought maybe it's to close so i added a wait frame
			call_deferred("waiting_animation")

What i tried:
different global_position

2

Probably is some floating point issue, after the tween you can use global_position = global_position.ceil() to round up the Vector2

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