I put in a full instance of GVI and put sounds in all 16 tracks. When I use my keyboard, all 16 sounds sound at the same time. I have some midi experience, but any change I make still causes the same problem. Lastly, if I record something on the track, the playback plays the correct sound as it is supposed to. My settings are below.
I - 828mk2 Omni (I tried making these individual channels but it did not work)
O - 2-GVI
CH - 1:GVI (Each track set 1-16)