I wrote two versions of a recent midterm and assigned one version to three sections of the class and the other version to the other three sections. I made sure that there were no students assigned to more than one section... But, at least one student was able to see both versions on their Canvas page (and take both versions). She finished version A and then grew concerned (for other reasons) that her work on that version was lost, so she started taking Version B...
This is not supposed to happen, right? Is this known glitch in the software? As far as I know this does not occur for most students.