Opened a new CD at CapitalOne 360 and one step update incorrectly downloaded all the interest payments from a previously matured and closed CD to the new CD. It should have only downloaded the initial deposit. Deleted the account in Quicken and set it up manually. Then setup transaction download, selecting Capital One Credit Card as the "bank" instead of Capital One 360. This time one step update worked correctly. My other accounts at CapOne 360 download as expected. So the work-around was successful, but something is wrong with One Step update at Capital One.