I am upgrading from Unity 4.0(5) to 7.0. I have the old and new Unity servers in the same AD domain. I ran cobras export, then migrated all users to the new Unity server using GSM. GSM doesn't appear to move Internet Subscribers and neither does cobras. I tried adding an Internet subscriber to the new Unity server and got the error "this extension is in use by subscriber XYZ". I deleted the Internet subscriber from the old Unity and tried adding it to the new server and received the new error. At this point the subscriber does not appear in either Unity server. I have deleted the associate contact from AD and still can not add it to the new system.
dbwalker is clean. How can I correct this problem?