MIDI Banks are not currently supported in Playback.
Playback will only ever load MIDI cues from channels in the DEFAULT MIDI BANK.
MIDI Banks can be utilized on the website on MultiTracks.com to store different sets of MIDI. You can copy MIDI cues from a MIDI bank to another MIDI bank for storage and recall purposes. Currently, Playback will only pull in MIDI Cues from the Default MIDI Bank in the library. Future utilization of MIDI Banks in Playback will be coming in the future!