TurboTax - this issue regarding your inability to import CSV files from major crypto exchanges is unacceptable.
If I didn't know better, I would say that this is a purposeful bug, being used to either (a) drive cryptocurrency filers to unnecessarily overpay for "TurboTax Expert" intervention / premium plans or (b) drive cryptocurrency traders to pay $199 for an unnecessary CoinTracker subscription.
This "inability to process your CSV file" appears to be - at face value - a fee scheme used to drive volume for TurboTax Premium and CoinTracker.
TurboTax - figure it out. This is - quite literally - unbelievable.
