MY SOLUTION: I did not file 2020 tax returns, waited too long and yesterday 7/6/2021 was trying millions of times with the "low caps, caps, 10- trick, different ID documents typos" everything you could think of and it never worked, I had to enter every single trade manually took me lots of hours. The problem was, after the extension limit time for 2020 (which is October of the same year I believe) robinhood probably shuts down the import capabilities, or there was a communication error between RH and TT there at least in my part (it would import from webull but not from RH, so do not be suspect firewall problems), contacted RH support and they could do nothing to fix it. 2021 was a cakewalk tho, I successfully imported the tax statement from RH using lowcaps and account number probably because I was still in due time. So my only advice is, don't wait too long to avoid problems, also do not copy and paste, manually input every alpha-numeric number in lower case without spaces, we spend too much money on premier just because we invest, to not be able to import for whatever reason, on any year. I will upload a video on youtube sometime to explain how to easily manually import everything, It's not as horrible as you might think
