Turbo Tax may just be asking if you have more 1099's to import. Scroll down and see if you see [Done or Next or Continue]
If nothing else works, change from Step-By-Step to Forms. In Turbo Tax Menu View -> Forms; or CTRL-2.
To return to Step-By-Step: View -> Step-by-Step; or CTRL-1.
That will get you out of the loop.
I imported from two different brokerage firms. Both were consolidated 1099's (INT DIV and B all in one). One had 10 items on 1099-B - all correct. The other had 463 with 6 errors. The errors were all from a long option trade that expired worthless, and it should the cost as a negative number. The number was correct, just in the wrong box. Solution was to enter the negative loss as the cost and the proceeds as zero, which generates a loss of the same original amount. I had a little trouble finding the errors until I realized there was a scroll and I could slide until I saw the red highlighted errors. So 457 entries imported correctly out of 463. That's a 98.7 % success rate.
You may just need to look for the slide or the button.
