Teleport player when he falls

I would like to teleport player, when he falls.
My code:

PHP:

public function onFall(EntityDamageEvent $event){ 
        if ($event->getEntity() instanceof Player && $event->getCause() == 4) {
                $event->setCancelled();
                $event->getEntity()->teleport(new Vector3($this->x, $this->y, $this->z));
        }
}


But when event is triggered and player teleported, I see repeating message in the console:
[Server thread/WARNING]: player moved too fast, reverting movement
And player can't move - him return back to teleport position
Why? :c

 

Dont use Tesseract :-D

 

I don't use "Tesseract"
I tested on pmmp/genisys

 

So, check Player height and teleport teleport when it was low

 

The reverting movement thing has to do with Anti-Cheat built in. If I'm correct @dktapps has been working on it, and (correct me if I'm wrong) you can disable movement check in pocketmine.yml to 'fix' it.

 

In pocketmine is it fixed download newest version