I installed the 10.3.3 agent on several devices this morning but only the latest device installed shows up in ZCC. If I go back and refresh a device installed earlier then THAT device appears in ZCC and the other device is gone. In services-messages.log it appears that the devices are re-registering with the same GUID. Very strange. I can't trust what I see in ZCC now. Is this a known bug?

I installed the agent from http://<zcmserver>/zenworks-setup with no registration key. All are Windows 7 64 bit with no SP1.