This is not exactly a bug but an incomplete feature implementation from the Old Recent Spending Card in the Dashboard.
Recent transactions with the +/- Total is a step in the right direction, but it still includes only the transactions with a spending category either alone or in a split. If one has a transaction that is only income, e.g., an Interest Payment, it won't be included. This needs to be changed.
Also, so far the iPhone app still says Recent Spending, but the modus operandi is exactly the same. Transactions with spending categories and those with splits that include a spending category are included. Pure income and transfers need to be included as well.