I will just add that my perception of the issue after troubleshooting it quite extensively is that if you have a lot of 1099 transactions that for whatever reason creates a lot of items to be reviewed in the final review process, the TurobTax software may slow down as you try to click through each of these review items in the final review process (as you are trying to clear them). And if it is too slow, it will run into a 40-second timeout that just sends you to that screen (the screen that states "Hmm, looks like we hit a slight snag..." etc.). I noticed that the application would hang for nearly exactly 40 seconds fairly consistently before it sent me to that screen, so it seemed like a timeout of some sort. I was able to get past the screen once or twice very rarely, but it was not enough when I had 100+ review items.
This problem could also be exacerbated by high traffic on the site which may further slow down the application. Seems like something engineering needs to take a look at. I am obviously not certain, but that was just my best guess of the issue.
