I'm having the same problem. TurboTax Premier 2019 all updates applied. I was able to import from E-trade and Interactive Brokers, but I'm not able to import from TD Ameritrade.
Is this defect because TD Ameritrade has 2020 documents available as well as 2019 for which I'm trying to file?
I've tried everything, even typing the document number character in lower case instead of uppercase (as suggested in another thread).
The error is not helpful in figuring out the problem. It's the same error regardless of account, user ID, document, etc.
Please fix this issue. Thanks.
