We have a dynamic group to select users that should be provisioned to a target application. The group is member of a role, the
role associated with a static resource implementing the target system account entitlement.

Yesterday the group lost all values for nrfDynamicMember and later got them back again. This caused inactivation and
reactivation on all users and they lost the ability to work for a couple of hours.

I've checked a selection of users in iMonitor and none of the attributes that is used in the dynamic group has changed since
October 2015...

I also verified dgIdentity and the ACLs on the user container and it hasn't changed either.

IDM 4.5.2, R&R driver

What can cause this?