I have set up Csv Data set Config and point to the csv file, when i run the test I am unable to see the data set for this variable, rather I am seeing an encrypted for username and password just showing as variables names and can not see the data being pulled from the csv file.
I was expecting to see different username and password being used for different thread user.
Are you sure your LoadUsers.csv file is a real CSV file and not a binary file originating form MS Excel or equivalent?
Try opening it using a text editor like Notepad and make sure that it looks like:
username1,password1
username2,password2
username3,password3
etc.
The file has to be text-based one, otherwise CSV Data Set Config won't work.
Also double check Sharing Mode of your CSV Data Set Config as with non-default value you might get non-expected behaviour.