[Solved] Strange login behavior

On my courses, I have some prerequisite reading material before taking an exam.
The reading material is a combination of links within my site. "outside links in moodle pointing to the same domain pages in joomla" and also a pdf to download. Then below that a link to the exam. These resources links look like moodle//mod/url/.. etc or moodle//mod/resource/ ...

When a user logs in to joomla, then clicking on the joomdle links to the moodle resources mentioned above, they will be asked to login to moodle.
However, when they select the exam. The exam link bounces through the joomdle//auth/ etc... They are not prompted to login to moodle and taken straight to the exam.

After doing that (clicking the exam) once, they can then click on the other resources above without being prompted to login to moodle and stay fully logged in and all links function fine.

Moodle 2.2.1+ (Build: 20120301)
Joomla! 2.5.9
Joomdle R0.91
Kunena 2.0.4
PHP Version 5.4.13

Thanks in advance

It seems SSO is not working on logging with the plugin.

Maybe you enabled redirectless SSO and it is not workinf for you. Try disabling it.

Yes, That was it.

Thanks!