Blocks takes too long to update / does not at all

I made a custom FrostedIce class (extending Ice) then registered it. Then added this onUpdate function hopefully that it'll execute this code on every few ticks...

PHP:

public function onUpdate(int $type){
        if((PMServer::getInstance()->getTick() % (mt_rand(1,2) * 10)) == 0){ // every 1-2 seconds
            $this->meta++;
            if($this->meta > 3){
                foreach($this->getAllSides() as $side){
                    $side->onUpdate($type);
                }
                $this->getLevel()->setBlock($this->asVector3(), Block::get(Block::WATER), false, true);
            }
        }
    }

But after waiting for 5 minutes, nothing seems to happen. The block doesn't seem to even update at all.

Is it supposed to do this or am I doing it wrong?

 

Try to use:

PHP:

$level->setBlockIdAt($x, $y, $z, $blockId);