Quicken had issues downloading transactions from Coastal24 for over a week (last successful download was around 10/8). Therefore, I went through the process of removing online access to every Coastal24 account and attempted to add them back. I have been trying periodically but Quicken simply shows a generic error: "Sorry. We encountered an error. (It's not your fault.)" and gives an opportunity to try again or enter transactions manually.
At one point I downloaded the transactions from Coastal24 and opened the file in Quicken only to have all of the transactions downloaded have a date with the year 1923.
Coastal24 is also known as Coastal Federal Credit Union.