Pagination and segment URIs

By the looks of things, there are a bug in 4.0.3, as the development version have changed how that feature works. And as of now (for you) it's broken. You need to load it manually for now.
https://codeigniter.com/user_guide/libra...e-manually

PHP Code:

$data['usergroups'] = $model->paginate(5, 'test', (int) $segment);