I just tried this and it worked. Thank you so much! I am super annoyed that I had to go through all of these extra steps in order to make it work. But downloading the desktop version did allow the page to load so I could make changes to my 1099-B info (which was just entering zeros). If I didn't have years of data already in TurboTax I probably would no longer use it as I have glitches like this every year! I do like the desktop version better, so I guess that's my plan if I go with TurboTax in the future.
Below is the link to the cause of the error.
https://ttlc.intuit.com/community/taxes/discussion/cannot-fix-entry-error/00/1932657
