Hi LBH,
Thank you for your answer.
Indeed, I have toggled Jup-8 V MIDI mode by clicking on the button with the MIDI connector. Then, I select the control I want to assign and a window pops up telling me it is currently learning. Then, whilst moving faders or knobs, the software doesn't pick up any input: the process hangs in learning mode forever.
It is the same in all V Collection synths.
Weirdly enough, if the default Jup-8 MIDI mapping matches some of my controller's, I can use them to control the Jupiter (although I won't see the faders and knobs moving in the VST, I can only hear the effect of it) ; but I can't assign any of them to any parameter through MIDI learning.
My keyboard sends those MIDI messages to the global channel 00, and Jup-8 is set to listen to all channels.
Other plug-ins will successfully pick up MIDI messages with my current configuration.
When using the standalone plug-ins, MIDI learning is successful: I can assign parameters and when I move knobs and faders on my keyboard, the faders and knobs will also move on the Jupiter interface.
Looks like the DAW could be the culprit. Any ideas?