A workaround and an arguably even more powerful way to change patterns via MIDI exists using CC41 to CC48 (performance mode track selection) but with a few caveats:
- You must be in performance mode.
- Pattern changes are queued and not instantaneous.
- 8 messages are required to change patterns on all 8 tracks.
A major benefit of performance mode track selection via MIDI over a more traditional program change is that you can mix and match patterns. But sadly there’s a bug in 1.7 that crashes and automatically restarts the Tracker if a stop message is received before the pattern change completes. A bug report has been filed and hopefully it will be addressed and resolved: