I'm an instructor looking over the item analysis for an exam (deployed using the "old" quiz engine NOT New Quizzes). When I first looked at the results on the item analysis page, I could see all the answer options. After updating some grading, the answer options for all multiple answer questions do not how (see screenshot).
The answer options are regular text (no formulae, no formatting like italics or bolding, no images, etc.). I can get what I need from the student analysis, but it seems odd that the answer options only disappeared for these multiple answer items AFTER regrading.
I haven't been able to find any causes or solutions online. Has anybody else encountered this?