Prophet 5 Volume drop issue

[Chris Ibbott]

Hi,

I'm using my Prophet 5 in Ableton Live as a midi instrument via USB. I'm getting a problem where the volume of the synth drops to almost nothing and I have to turn it on and off to get the volume back. I think it's a midi issue as when I don't have the Midi  input set to 'all ins' and choose a specific midi input only this doesn't happen. It's a bit of a pain having to change the midi input to prevent this though.

I'd like to understand why this is happening so I can work around it.

I'd appreciate very much if somebody could help me with what's going on.

Thank you.

[Quatschmacher]

Is something perhaps sending a low value on CC7 (MIDI volume) within Ableton?