Quicken Windows Deluxe (current version) places new Investing accounts above or below a faint line in the left Accounts panel. How to insure a new account goes below the line or to move existing above the line accounts to below the line
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Retirement accounts go below the line. Non-retirement investing accounts go above the line.
Right click on the Investing header and turn on "Show sub-group totals in account bar". This should help you understand what's going on.