For whatever reason, (and I'll toss in the possibility of user error...) altering the tuning does not change the sound. I noticed this while tuning all strings down by -12 to explore bass sounds. Even loading alternative tuning presets doesn't change the sound.
I upload the preset, save it, open it, etc. No change to the sound.
Am I missing a step? Or is something else not working?
Making other on-screen parameters such as choosing a body model, pick up configuration, etc updates the sound.
Firmware v2, installed twice as suggested.