Problem with second user account sharing one iTunes library

I have an iTunes library that is outside my Home folder that I am sharing between two users. One account functions flawlessly. All the songs are there. Everything is organized into folders by iTunes. iTunes Match is working as it should and all files have been downloaded from the cloud.

I have tried everything to get the second account to work as the other. I have used Apple's instructions to reimport the xml file. I have even recreated that users iTunes account from scratch. But when I go to preferences and point that account to the shared iTunes library the new account wants to copy the files or re-download the music and in both cases making duplicates in the library.

Looking for help.

Message was edited by: bitman