Why dont these instructions work? https://ttlc.intuit.com/turbotax-support/en-us/help-article/cryptocurrency/create-csv-file-unsupported-source/L1yhp71Nt_US_en_US

It seems like the online turbotax has updated to allow csv files for an unsupported crypto wallet. I have created one using the provided instructions but the upload fails. Please advise.