1099-DIV import fails

When I try to import my 1099-DIV from Fidelity into TurboTax (Premier, Mac download), it connects properly to Fidelity but fails in the import. It had failed when I tried to import my 1099-B, perhaps because of too many transactions (I may have ~1000 but I'm sure not the 10,000 limit TurboTax says). There are many fewer transactions on the 1099-DIV but it still fails, with the error message saying the 1099-B import was unsuccessful. Does too large a 1099-B mean that it won't import 1099-DIV either? (I typed in by hand my 1099-B info; do I have to do the same for 1099-DIV?)