Apologies we didn't update the thread with the resolution. The issue was that iTunes was unable to index media changes, including cover art changes, because the default 64-bit version of iTunes 12.x was installed and this version of iTunes cannot read video files when running as a Windows Service. If using iTunes 12.x with iHomeServer, we strongly advise using Apple's alternative build of "iTunes 64-bit for older graphics cards
" as this continues to support video importing and works fine with iHomeServer.
Please see http://blog.bizmodeller.com/post/2015/0 ... erver.aspx
for further information and the download link to the alternative iTunes version.