This 'bug' only affects the transistor organ models - Vox/Farfisa - in LIVE mode:
Check this out:
Select a Live location:
Select organ model using Farf or Vox and turn vibrato on
You should hear the Vibrato
Now switch to another Live location and then switch back
The vibrato on LED should be lit but I don't hear any vibrato
I have to toggle the Vib switch off/on then the vibrato works
Same happens if I switch from Live to Program and back again.
This is only a problem in Live mode - if you store the patch in a program it recalls the Vibrato correctly.
I've emailed support........