Character disappears after setting position

Question

So I have a mage that will do this if they hit a collision body below screen

func _on_Teleport_body_entered(body):
if body.has_method("_teleport"):
    body._teleport()

But for some reason when My priest falls down and gets teleported he appears for a second then immediately disappears.

func _teleport():
position = spawn

I don't know what's wrong and there aren't any errors

Comments

is your priest rigid body?

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For helping you more, we would need some more informations.
How is the structure of the priest, does it include some sprite or anything visual.
(make a simple screenshoot)

The behavior you describe seems like the visual is in cause.
To be sure have you try to simply "brutforce" print is position:

var time = 0
func _physics_process(delta):
time += delta
prints(time,position)