I was having the same issue where my CItibank credit card transactions weren't downloading. I went to reset my connection and was prompted to go to Citi's website to log in. I entered my user name and password and logged in, only to be presented with a blank page with just the Citi logo and a URL that included "consent".
I just got the notice about the new connection method so I tried again but am having the same issue. Anyone know how to resolve this? If this is a Citi issue, how would I contact the right department?