It looks like in this case you actually have two sets of credentials that are in use, and Git has tried one and failed, and fallen back to the other one. This prompt comes up when the credential manager is invoked on Windows in case a prompt is displayed and you need to enter some credentials.
When you put a PAT in the URL like in this case, you need to put the PAT as the password. That means you need to specify a username, so your URL should start with something like https://username:password@dev.azure.com/
. It isn't clear from your post whether you have the username:
portion, so if you don't be sure to add one (it can be anything in this case; token
and your username are common).
If you don't have a URL of that form, your PAT isn't being used, and you're likely falling back to whatever is in your credential manager, which is correct. Otherwise, it's possible that Git is preferring something in your credential manager which isn't correct, and falling back to something that is. Either way, you should inspect the credentials in Windows Credential Manager and delete any that are incorrect.