DB::rollBack(); not working on innodb on local pc

The tables affected are InnoDB, but still the Rollback sentence dont works. I try to create a record in a master tabla and then erase all and recreate the records in a subtable of master. The master is created, but when is creating the slave records exception occurs , that's ok, but the rollback is not working, the master record keeps still in the table:

DB::beginTransaction();
try{
    $master = new Master();
    $master->data = "some data";
    $master->user()->associate(\Auth::user());
    $master->save();

    foreach($slave_data as $sd){
        $slave = new Slave();
        $slave->Master()->associate($master);
        $slave->data = $sd->some_other_data;
        // exception occurs here! ^
        $slave->user()->associate(\Auth::user());
        $slave->save();
    }

    DB::commit();

} catch(\Throwable $e) {

    DB::rollBack();

what I'm missing? The InnoDB is there, all the relations are created and working, all the tables says are InnoDB. But somehow the Rollback is not working...