[Plugin: Front-End Users] Cannot list WordPress users in FEU page

I’m using this code to list all users.

It works in a regular page template but does not work with any of my view pages.

Any ideas on what’s causing the conflict?

Here’s the code:

[Code moderated as per the Forum Rules. Please use the pastebin]

Might it be something to do with the $user variable?

http://wordpress.org/extend/plugins/front-end-users/