My USAA account has recently stopped updating on Mint. This appears to be a problem with the way Mint handles USAA's multi-factor authentication after a recent update.
There seems to be a problem as the account is updating and Mint displays the "Multi-factor authentication" window where you select the phone to receive USAA's authentication code. The step to select the phone to receive the authentication code is on the same view as the field in which to enter the authentication code. In other words, you cannot submit the request to receive the code from USAA before Mint asks for the code. It appears the field in which to enter the authentication code has recently been moved incorrectly to this screen. This was working fine last week.