I am facing this same issue.
This issue cannot be resolved by clearing cookies, restarting the browser, or anything related. The file upload does successfully complete and can be verified in the network inspector in Chrome.
The issue is that TT is not able to process CSVs that are produced by Binance.US in the format that TurboTax instructs its paying customers to download.
Please escalate this issue. It will not be solved by restarting browsers, clearing cookies, etc.
