password_verify() with generated hash from Myth-auth returns false

I know that Myth-auth is not stable yet, but it's okay that's not my point.

I want to make a change password feature so I wrote this in my controller:

Code:

$oldPass=$this->request->getPost('oldPass');
$check=password_verify($oldPass, user()->password_hash);

//Myth-auth has helper to get field data in database using user()->column_name function

var_dump($check);die;

I don't know what's wrong with my code, but it returns false a4

so I checked again using a hardcoded password like this:

Code:

$check=password_verify('bayusetiaji14', user()->password_hash);
//using double qoutes
$check2=password_verify("bayusetiaji14", user()->password_hash);

but it's still returning false, is this a Myth-auth bug when hashing password or anything else?