Can't see all gradebooks anymore when launching gradebook

I have teachers who teach classes in two different divisions (upper and middle school). Today I received three complaints that when they launch their gradebook, they can only see the classes for one division/gradebook at a time. All three teachers swear that yesterday when they launched the gradebook, they saw all classes listed regardless of division. Today, they have to click on a class in certain division and then can launch the gradebook which will show only classes in that particular division. Is anyone else experiencing this?