Kat, I've tried that a month ago. Like the other users in this thread have described, using multiple devices, browsers etc. Over 2 weeks ago I heard that there was a known issue and that the fix was only a couple of days away. It's now been 10 days.... and nothing. It's not ONLY the E-FILE that doesn't work but if I wanted to mail the forms, I CAN'T print them! That's where I think the hang up is.... BTW I have about 5,000 transactions for my investments..... I originally thought that it was the cause of my issue. But, then I deleted one financial exchange that had 2700 transactions and just did one purchase/sale (would have to mail 8949 form separately) and that still didn't work. I've talked to CPA's & Customer service and just get the run around.
