Yes, I'm having this problem since 12/1 with all our bank accounts and credit cards. We work with multiple banks, Bank of America, American Express, First Republic. We deleted two accounts and reconnected and one worked. The other has not updated at all. I've called tech support twice. One representative noted QB is having an issue on their end, and the other representative said they did not see any issues with our connection and to keep trying to synch. I'm told to call them back in a couple of days if I am still having the issue. 

I think Quickbooks Online is having an issue but does not know how to fix it yet.