I want to edit or delete 1099-B information that I entered but there are no buttons to edit or delete on the summary page to allow this. Is there a workaround?

I have the same problem.

TT updated today.  I was able to use the slider below the summary to move to the right part of the page, which showed there were edit and delete buttons for each 1099 B entry.  So I was able to delete and start over. I definitely tried that last night and there were no buttons, so maybe something in the update fixed it.