No, it has not been resolved. Right now we are neck deep in developing an LC project so more research on our end has been put on-hold; I posted this here hoping that someone had encountered the same issue, or that perhaps someone from Adobe would see this and could get us the information we need.
For the user in question we had them uninstall DC and reinstall XI. Our agency has a policy of keeping pretty up-to-date with various versions so I know we are going to have to address this further at some point in the near future, but we haven't gotten there yet.