If there are error messages to fix your 1099-B
form and you have "copied and pasted" to enter some of the information,
it might have spaces or other invisible formatting characters that are causing
the errors. Please be sure there are no extra spaces before the
entries or after the entries. If
you have imported the form, try deleting it and manually entering the
information. Also, be sure there are no
zeros listed. If the box is blank, please leave it blank.
https://ttlc.intuit.com/replies/6472418