Solved No hitdelay after changing knockback

PHP:

public function onDamage(EntityDamageEvent $event) {
        if(!$event->isCancelled()){
            $player = $event->getEntity();
            if ($player instanceof Player) {
                if ($this->manager->isInGame($player)) {
                    $event->setBaseDamage(0);
                    if ($event instanceof EntityDamageByEntityEvent) {
                        $attacker = $event->getDamager();

                        if ($attacker instanceof Player) {
                            $item = $attacker->getInventory()->getItemInHand();
                            if ($item instanceof Stick) {
                                $event->setKnockBack($this->manager->knockback);
                            }
                        }
                    }
                }
            }
        }
    }

After changing the knockack the hitdelay is gone. Adding !$event->isCancelled() didn't help.

Has anyone an idea, what the problem could be?

 

From what i read the problem could be the setBaseDamage(0). Try without

 

Yeah works when removed. Thanks!