Here is the answer I received, with ver 9.1 if you try to restore from an enc file from another machine or a thumbdrive it triggers a security concern and doesn't allow it to happen
AC support was able to do something to my file then I was able to do the restore.
They remarked as long as the enc file was made and stayed on the machine where you do the restore it should be fine such as from a D drive to a C drive restore, yes that makes it a little problem if you need to restore from a thumbdrive but luckily that database wasn't huge so didn't take too long for the file transfers to and from AC.