Peter - Yes, it could be because of the gradebookplus_v2 code. But first check to make sure your Group Mode under Course Settings is it set to either Visible or Separate. I have created some documentation about that at:
I have also tried to update the code for gradebookplus_v2 to incorporate some of the many changes made to 18STABLE CVS since GBPv2 was released. Those changes of the merged code are available at: http://moodle.org/mod/forum/discuss.php?d=50154#p337076
I have asked Jeff Graham to help test the code to ensure that everything is working as it ought to work. I did notice a couple of bugs that I will get back to later in the exporting of information to ODS and Excel formats but from what I can tell everything else is working OK. Let me know if you still experience this problem. Peace - Anthony
Hi, this should have been fixed, please update your code, thanks for the report.