I've newly installed QV 11 SR2 on two machines. One having the QVS (fronted by IIS) only and the other the rest of the services.
(From the beginning I had the QVS too on the same machine as the publisher but it is closed down now.That is why there is a warning in the caption of the screenshot attached)
Things works as expected but when looking into the QMC->Users->User Management and searching on one or several users I get an error-message saying "Object reference not set to an instance of an object"
The first sub-tab CALs never shows any data but the other sub-tabs (Server Objects, Groups, Documents and Distribution) all shows expected data.