I work for a school district and we have several campuses. In or AD directory each campus is represented by an OU and each campus OU has a student OU inside of it. In each Student OU there is a group called Student. Now every user in a Student OU is a member of the Student group in that OU. Now for our larger campuses some of those Student groups have 1000-1500 members.

The problem I am having is that for those very large groups in ZCM it is not listing any members of that group. It actually says "No items available" when you view that group in ZCM. Now there are some campus that have 800 users that are members of the Student group and it shows those fine.

Is there a limitation on the number of users you can have associated to a group in ZCM?