We recently had an issue where students had a problem seeing the equations in our math placement tests. The question would appear, but where the equation should appear was empty space. The issue seems to have been confined to the Safari browser, but we've now had a student who experienced a similar problem using Chrome in a biology class.
Instructure Support has identified an issue with LaTeX images when viewed through Safari 11 that they think caused the problem. (I am still trying to get information from students as to which version of Safari they are using.) The issue seems to have been resolved in Safari 12, but I was wondering if any other schools have experienced this issue, and if you have, whether it's been confined to Safari 11.