"Unknown" Album Artist

[tylerdurden]

Hi!
First of all, thanks so much for your great effort in writing this server program!
I love it a lot already as I have tried so many different servers and this one already look promising and easy/fast to use!
However, I have problems regarding some albums as they are grouped into "Unknown" and not the Album Artist I tagged.
I use a mac mini and iTunes to manage my music library and run minimserver mac version (thanks for the effort again!), with "Tuneup" (another software) to help me to do the tagging jobs.
I double checked that those albums are tagged with my desired "Album Artist" but still they are grouped to "Unknown" under album artist view in Kinsky iPad.
May I know what are the possible causes such that I can fix the problem and enjoy the use of minimserver even more?