Bank Statement line - amount reconciled and reconciled transactions are dissapearing

Good morning,

My user is reporting that amount reconciled and transactions that were reconciled to a bank statement line are disappearing after she reconciles. She is matching a EFT batch to the bank statement, this is happening almost everyday.

We reviewed the tables and it looks like the system is not saving her reconciliation, we replicated the same in our test environment, but we could not replicate the problem.

Her work around is to match it again and to hope that the system saves the matching/reconciliation. 

I have reviewed the Oracle documentation and I found they offer a datafix, which is not useful in our case.