Error in Turbotax Premier desktop?

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After I typed in my brokerage house proceeds and cost basis into Turbotax, I noted that the numbers generated for net gain/loss were correct:  TD Ameritrade's statement showed that LT covered transactions had a net loss of  -867.18 while  LT non-covered transactions had a net gain of 8218.24;  Vanguard transactions showed a LT  covered net gain of 14,104.43.  I totalled these transactions to $21,455.49, but in the Turbotax section where you are asked to observe this year's capital gains/loss and estimate next year's capital gains/losses, the total LT gain is written as $28,151, $66956 more than I expected.  Am I missing something?  The total ST gain/lost figure is correct.  Thanks.