WhyShapiro,
Oh dear, that is a problem. I will alert the powers that be to it. I suggest, though, that you could use the Forms view to delete the existing 8949, if any, and re-import the transactions from your desktop. The "exception" is either (1) that all your transactions were clean consisting of only cost and sales without any adjustments or (2) a copy of your 1099-B statement or comparable document was created to attach to the return and, as you saw, existed only on TurboTax's computer and was not transferred to the desktop. (More details are available in Form 8949 Instructions. )
