I suspect the responders don't fully understand the issue here.  I have just encountered a similar one, so will try to articulate it.  Client uses payroll service, so transactions import to QBO automatically.  The tax payment was dated 5.01.19 by the payroll service, but the bank showed it as cleared on 4.30.19.  When reconciling April, the transaction is not available within the month parameters, so cannot be checked off.  It ends up being a discrepancy for the month of April due to the anomalous timestamps on the transaction.  Because the transaction originated with the PR provider, it cannot be modified; thus the account cannot be fully reconciled for the period.  Obviously, it will resolve the following month, but it's problematic in the current period.  I have never seen this happen before, but users should be aware that it can happen.