Looks like u are safe man. As per my understanding it looks like the following case. When your company filed h1, they also have to file for change of status which will be effective after oct. so when ur h1 is initially approved your change of status might have been approved. But as your revoke your h1b before oct, your change of status never triggered and might be showing as denied in sevis status.

If this is a case, if are safe for stamping. But just to make sure better take consultation from good lawyer who knows about student visa and sevis system..