I am having the same issues as @ fkingfisher with the failure of TurboTax importing 1099s. I have logged in both of my account number and document ID without spaces, just to receive the same message: Robinhood - Robinhood Securities: Invalid Signon. I have received this message seven times today and four of those times were when I was talking to Robinhood's Support Team.
Just for future clarification: I do not have a Robinhood Crypto. I also tried the signing on to my Robinhood account through TurboTax and received the following: "This import was unsuccessful. No problem - we'll help you enter the information and continue with your return."
Can TurboTax correct this issue before April 15th?
