Wow, tried to check in tonight. Only showed the boarding pass for the 2nd leg of my flight. Called support. What a useless exercise that was.
First told it was a problem with my printer. When I pointed out that I was receiving an error message on the DL web site when I executed the exact steps she told me, she said that it must be my computer, because she can see the boarding pass.
Was told that maybe I should try again later.

They had no interest in actually doing any debugging or investigation of any sort. No wonder all these bugs continue. Delta Technology doesn''t care.