Yes, the login faults, and warns after two tries that it wont try again to avoid getting locked out.
There is nothing on the internal MT login to accommodate the 2fa code.
Whats causing the Etrade login screen to appear ? (that screen has the 2fa field) I thought that if it stayed on screen long enough to be used, you might be passing the auth back to MT . Since it flashes and vanishes, no way for me to tell if thats what you intended