I had an issue a couple of months ago where my security settings were objecting to 'rownum' in the assignment grading module (MDL-35485). Damyon Wiese kindly sent me a patch for the locallib.php and gradingtable.php files which worked resolved the issue. I have now upgraded to 2.3.3 and then (after a couple of days) remembered to patch these files again.

Although I don't think it is related, I am now finding the assignment grading page is showing an incorrect offset (rowindex=-1) under the grade column link yet the correct offset (rowindex=0) in the Edit/Update grade column link.

Is it me? Or a known issue?