I think you did something illegal. You can't rollover an after-tax 401k (you mean a Roth 401k, right) into a traditional IRA. And the IRA custodian shouldn't have accepted the funds, if they knew what was going on. Any pre-tax 401k could be rolled over into a traditional IRA but an after-tax 401k can only be rolled over into a Roth IRA.
@dmertz
