Brian,
I have been trying different combinations to try to get you more details.
1) There is no NFS client on the local computer
2) Previously unmentioned but possibly pertinent, the library is being built on the server in a different directory but accessed as a local library. I explored this a bit and have not seen a problem if I build the library on the local machine. I used the server-based approach to try to keep as much on the server as possible.
3) Imports of just the Doors branch of the file tree seem to work fine.
4) I have tried Auto and Manual imports. Both do pretty much the same thing.
5) Most of the time, when using Auto Import creation, the directory builds correctly but seems to update later to the corrupt version that I show in the attached screen shots. By corruption, I mean that when looking at the Audio options and choosing the "Files" category, I see a branch that correctly points to Central_Storage\Media\Music\Sorted and all the artist folders are under that. But then I have individual branches for each of the artist directories off of the main trunk of the file tree structure. Hence the duplicate files and paths. See the pictures for more.
6) The only time I tried to build the entire library in a server-based test, the corruption was there right from the start.