Falla el filtro where en la consulta

Tengo el siguiente código que funciona bien.

$visits = Visit::leftjoin('profiles', 'visits.user_id', '=', 'profiles.user_id')
                        ->selectRaw('visits.id as vid, profiles.name as uname, visits.first_name as vfn, visits.last_name as vln,
                gender, visits.cuit as vc, DATE_FORMAT(date_of_birth, "%d-%m-%Y") as birth, DATE_FORMAT(visits.created_at, "%d-%m-%Y") as date, TIME(visits.created_at) as hour')
                        ->orWhere('profiles.grandfather_id', $id)
                        ->orWhere('profiles.father_id', $id)
                        ->orWhere('profiles.user_id', $id)
                        ->paginate(50);

        return view('admin.dashboard.visits.admin-index', compact('visits'));

Pero al agregar esta sentencia, no la incluye en el filtro:

->where('visits.created_at', '>=', now()->subDays(15))

Queda así:

$visits = Visit::leftjoin('profiles', 'visits.user_id', '=', 'profiles.user_id')
                        ->selectRaw('visits.id as vid, profiles.name as uname, visits.first_name as vfn, visits.last_name as vln,
                gender, visits.cuit as vc, DATE_FORMAT(date_of_birth, "%d-%m-%Y") as birth, DATE_FORMAT(visits.created_at, "%d-%m-%Y") as date, TIME(visits.created_at) as hour')
                        ->where('visits.created_at', '>=', now()->subDays(15))
                        ->orWhere('profiles.grandfather_id', $id)
                        ->orWhere('profiles.father_id', $id)
                        ->orWhere('profiles.user_id', $id)
                        ->paginate(50);

        return view('admin.dashboard.visits.admin-index', compact('visits'));

Quitando estas tres y dejando la anterior funciona:

->orWhere('profiles.grandfather_id', $id)
->orWhere('profiles.father_id', $id)
->orWhere('profiles.user_id', $id)

Así:

$visits = Visit::leftjoin('profiles', 'visits.user_id', '=', 'profiles.user_id')
                        ->selectRaw('visits.id as vid, profiles.name as uname, visits.first_name as vfn, visits.last_name as vln,
                gender, visits.cuit as vc, DATE_FORMAT(date_of_birth, "%d-%m-%Y") as birth, DATE_FORMAT(visits.created_at, "%d-%m-%Y") as date, TIME(visits.created_at) as hour')
                        ->where('visits.created_at', '>=', now()->subDays(15))
                        ->paginate(50);

        return view('admin.dashboard.visits.admin-index', compact('visits'));

Consulta Sql();

select visits.id as vid, profiles.name as uname, visits.first_name as vfn, visits.last_name as vln, gender, visits.cuit as vc, DATE_FORMAT(date_of_birth, "%d-%m-%Y") as birth, DATE_FORMAT(visits.created_at, "%d-%m-%Y") as date, TIME(visits.created_at) as hour from `visits` left join `profiles` on `visits`.`user_id` = `profiles`.`user_id` where `visits`.`created_at` >= ? or `profiles`.`grandfather_id` = ? or `profiles`.`father_id` = ? or `profiles`.`user_id` = ?

$visits = Visit::leftjoin('profiles', 'visits.user_id', '=', 'profiles.user_id')
                ->selectRaw('visits.id as vid, 
                            profiles.name as uname, 
                            visits.first_name as vfn, 
                            visits.last_name as vln,
                            gender, 
                            visits.cuit as vc, 
                            DATE_FORMAT(date_of_birth, "%d-%m-%Y") as birth, 
                            DATE_FORMAT(visits.created_at, "%d-%m-%Y") as date, TIME(visits.created_at) as hour')
                ->where('visits.created_at', '>=', now()->subDays(15))
                ->orWhere(function ($query) use($id){
                    return $query->orWhere('profiles.grandfather_id', $id)
                                ->orWhere('profiles.father_id', $id)
                                ->orWhere('profiles.user_id', $id);
                })->paginate(50);