FYI, there is no need to change browsers if you prefer Brave. I ran into the same problem, and wasted nearly an hour on the phone with a TT rep., who was very nice but had no idea how to actually solved the problem. Then I remembered that Brave blocks popups and certain other things by default, which sometimes interfere with a legitimate website. Before logging into the Fidelity page again, I clicked on the little red and white Brave icon (looks like a lion) at the right end of the address/search bar, clicked on the slider to turn off "Shields," and those two clicks solved the problem! I successfully imported multiple 1099s from my Fidelity accounts, and they showed up in the right places on Turbotax.
