Moog grandmother no work well

[FrankFB]

Hello everyone. I have had a problem with my Grandmother. Everything worked fine yesterday, and today when I turned it on it doesn't work right. The oscillators module does not work, as well as the modulation and arpeggiates. In fact, the only sound that comes out is the self oscillation of the filter. Neither the glide nor the hold, play and tap buttons work. Not that this could happen

[TangerineDream]

Have you tried resetting it in the global settings?

[Achim]

I would guess, the Local Control is disabled in the global settings. See the V1.1.3 Release Notes, parameter 0.10 Local On/Off.
This may happen if you connect the GM via MIDI to a DAW.

[stiiiiiiive]

I wonder... I don't have any GM here but I'm not sure this is the root cause: whether it is the oscillator signal or the filer self oscillation, you must open the envelope to let it through the VCA (Local on/off setting should be tested though).

To FrankFB, what do you mean by this?

the only sound that comes out is the self oscillation of the filter.