I have attempted to set up two accounts that keep telling me that my credentials are incorrect. Both of these accounts send me a code which I receive and copy/paste into the Moneydance+ window. I then get the incorrect message. These two accounts are T. Rowe Price and Treasury Direct, both of which appear in your list of banks.
Thank you for contacting Moneydance support.
I've responded in your other thread here. For consistency I would keep the discussion there, if you don't mind.