I bought Omnisphere the other day to brighten up some older midi files made years ago. For some reason Omnisphere will not play them, and I cannot see why this is. Omnisphere itself works fine, the sound works fine, if I create a note within a new region in Logic it plays... so why won't it play using an older midi file? Is there perhaps some mysterious midi data command in the midi data that needs attention? Grateful for any thoughts here.