Some movies do not show up in Movies section

Videos are missing in the Movie view after initial scan of remote storage. The videos are accurately counted and identified in during the scanning process. The files are present when browsing the Source via the "files" view. Once they are selected in the Files view they then appear in the Movies view with the correct identity/thumbnail/etc. This is consistent anytime I initiate a full wipe/re-scan of my sources. Automatic scans (set to daily) do not find/add the videos to the Movies library.
My boxee box is connected via wireless (802.11n via Netgear AP) and the files are stored on a NAS device (shared via NFS shares).
I suspect this also occurs for some items identified as TV, but I have not got searching.