Course Mates Module not displaying avatars

Hello,
The course mates module is not showing any avatars...I am using Jomsocial as the profile extension.
Please help..
Thanks

What is it showing? Broken bitmap image? Default image?

Have you configured joomdle to use JS as your external data source?

What versions of Joomdle, Joomla, Moodle and JS are you using?

Hello,
I am using:
Moodle 2.9
Joomla 3.4.3
Jomsocial 4.0.9
Joomdle 1.0.2
I have enabled Jomsocial as my external data source.
Actually, I realized later that the module is not showing any students at all. It says No Students Yet.
In Moodle I have enrolled all the students to a certain course and was hoping the students could see each other on Joomla in course mates module.
Have I missed something?
Thanks

Okay, update.
It seems the module is not behaving consistently across the site. This is why:
1. I have published the course mates module within a jomsocial module position on the jomsocial homepage. It is blank. No error, no avatars, nothing.
2. I have created another course mates module and placed it in another module position in two other pages.
In one of the pages, the module displays 'No Students Yet'. However, in the other page, it actually displays the avatars of the students only with a notice above each avatar:
Notice: Undefined index: in ...\plugins\joomdleprofile\joomdlejomsocialprofile\joomdlejomsocialprofile.php on line 157
Any help will be greatly appreciated.
Thanks

Course modules are meant to be used only on course page.
Please check:
www.joomdle.com/wiki/Modules#mod_joomdle_coursenavigation