In my case, Fidelity is not providing cost basis on many option transactions (only gain/loss is provided), TT is throwing error on losses that doesn't have cost basis. On TT, I manually updated option transactions that has losses with actual cost basis and proceeds using historical statements.
It does take 2-3 hours to track all historical transactions, if you are in a hurry to file then it is worth an effort. Not sure when TT will update the system again.
