Hmmm... this become more and more interesting. I assume you are using VR 5.1.0.1 right?
By the way, is the VM that has been replicated still in the inventory? If yes, you need to check if there is anything in the logs. Otherwise, it just guessing.
Till then, just in order to clear the replications list, if your VM is still in the inventory - you can remove it and add it back. The removal process, will trigger in the VR server replication removal, thus it will dissappear from the incoming/outgoing replications list.