Look in the Register view, bottom left, to confirm you are Not checkmarked as 1-line.
Now each two lines is one Transaction. Stop working in the Register View. Make Transactions. Banking menu > Write Check. From the Register view, double-click where you see CHK. Here is the Real View for input. You never even saw the Items Tab, in the register view.
The Record button is the same as Tabbing around to the next Entry. But make transactions. These are Saved and Closed, or just Saved = they Record themselves.
Banking menu > Make Deposit.
Customers Menu for Sales. Invoice, Sales Receipt. Not Register inputs.
Vendors menu for purchases.
Banking menu > Enter Credit Card Charge, when you already Bought something by putting it on the credit card.
You never use the Register for reconciliation. You use Banking menu > Reconcile. This is the Tool for the Function. And you cannot reconcile out of Date sequence.