How do I reconcile an account transaction that is in Register and bank Statement), Not in R win

Reconcile I am behind in reconciling my checking account (3-12-19 to 4-10-19). There is one transaction for 30.00 that is on the bank statement and in the Quicken checking register as "cleared" , but is not showing in the Quickens Reconcile Window. The balance are 10 off. Should I add what's in the Bank Statement to the Reconcile Window, or let it go to Reconcile the next period April to May? If I do an adjustment for the 10.00. How does that impact my register going forward? When I do my next reconcile (April to May), will balance come out to zero (using the adjustment feature) or will the balance be off by 10.00 (if I can't find the difference)?