We have also been having issues with our Capital One bank. Last year, either our CC would work or our Bank would work. We'd have to reconnect, sign in, and then the other would work but would kick off the one that was working. Up until a few months ago, this was a workaround. Then, it no longer did that. We disconnected it and tried to add and the bank connection just shows "Connecting to Capital One..." after we log in. Then after about 5 minutes, it goes back to the beginning and wants to log in. It just goes into this loop. I removed the CC connection. Still was not able to add the bank, but was able to add the CC back. I contacted support on 3/1 and they said "Your account has been affected by the ongoing investigation." Engineers apparently know about it, but I have not heard any updates about it.