Solved Is "isLevelGenerated()" broken?

I believe yes and this code is malfunctioning:

PHP:

foreach ($this->config->get("worldMask") as $w) {
                if ($this->getServer()->isLevelGenerated(strval($w))) {
                    $this->wl = array_merge($this->wl, [$w]);
                }
            }


any alternative code I can use instead?

 

Get the level and check if the value is null or empty

 

The thing is that this is exactly what isLevelGenerated does, it retrieves the server instance and checks if it is an instance of Level