Login failed, please try again message when connecting to the MultiTrans Client

It is important to remember that when changing the password for a user account in Flow, and that same account is being used to log in to the the MultiTrans client, it will need to be updated the next time that account is used in the MultiTrans Client. Here is a link to an article with more detail: https://gateway.sdl.com/apex/communityknowledge?articleName=000019590.