Me either, and I am a long-time user of Battery 3.
By default, all outputs for a loaded kit will go to the single Master pair of outputs, so I am a bit confused.
I always use custom kits, where each loaded cell is assigned its own set of outputs, which I then assign individual audio tracks for, giving me total control over each kit piece.
Sorry I don't have your issue, and like John, have no idea why that would be happening to you.
I would like to help, can you please detail your cell output routing values, and the corresponding track assignments? Perhaps with more detail, we can get something figured out for you.
Bob Bone