Thanks for the detailed information about the process you've performed, dusty15. 

Yes, you're right, all transactions that have been reconciled in QuickBooks Desktop (QBDT) prior to converting it to QBO, will show as R on the register. 

We can proceed in reconciling the month of August to December since the prior months were already reconciled. To help you with the process of reconciliation in QBO, you can check out this article: Reconcile hub. 

I'll be around if you need more help. Have a good one!