Undo Account Reconciliation

I needed to undo my March 31st Bank Reconciliation so I followed the instructions from Sage BV help that I found on line.  I unreconciled as per the instructions.  When I went back in to redo my March Reconciliation transactions dating back to April 2018 are showing up.  help please someone. I'm trying to complete my year end and need to finish this bank rec.

BELOW ARE THE INSTRUCTIONS I FOLLOWED:

To undo an account reconciliation:

  1. Must be logged into Sage BusinessVision with a level 9 user.
  2. Click Utilities, Account Reconciliation.
  3. Select the Acct no for bank account.
  4. Enter last reconciliation date but do not enter opening and ending balances.
  5. Click Reconciled items.
  6. Click OK.
  7. Uncheck all transaction that need to be outstanding again.
  8. Click Post but do not print report.

All the items are unreconciled  and the account reconciliation can be started again.