ODP.NET

I have problems using TransactionScope with Odp provider.
In general it works with no problems, but when I have situation that is Transaction.Current in aborted state, commands like ExecuteNonQuery do not consider TransactionScope and immediately commits work to database.

I also tried with last release of Oracle Data Provider - ODAC 11.2 Release 5.

In ConnectionString I use setting "PROMOTABLE TRANSACTION=LOCAL" for local transactions.

Simple example:

try {
using (TransactionScope loScope = new TransactionScope()) {

OracleConnection loCon = new OracleConnection(lsConnectionString);
loCon.Open();

//do some work ... work do not succeeded successfully
Transaction.Current.Rollback();
//Transaction is in aborted state

//do some other work ...
OracleCommand loCom = new OracleCommand("update TAK_TASK set STATE='SU' where tsk_id = 50", loCon);
loCom.ExecuteNonQuery();
// ExecuteNonQuery immediately commits update in database
loCon.Close();
loScope.Complete();
}
}

Does anyone else have the same problem?

Is there any solution for this case?