I just experienced a "funny" behaviour, fortunately only during a rehearsal (although my colleagues looked a bit puzzled)
Layer B (no matter if stacked, split, or normal) was one semitone too sharp. This could easily be seen by the keyboard LEDs: Voices lighting LEDs in the lower row were one semitone too sharp, while voices lighting LEDs in the upper row were correct. It must have to do something with the keyboard software/electronics (not the sound generating circuits), as external instruments conneted via MIDI out also suffered from this.
After checking the global parameters (which were as I set/wanted them) I tried switching off/on several times, including some off-time, of course.
As this did not change anything, I recalibrated the oscillators (Global -> LFO2) and resetted parameters (Global -> LFO3), which did also not cure this until switching off and on again. At the moment everything seems to be OK, but:
What happened? May this happen again? What if this happens while on stage?
If noone here may help or DSI-people do not read (any more) I will approch their technical stuff via email and return with their answer.
Martin