Percussion/expression map problem

I made a percussion and expression map for Halion 7 for playing a suspended cymbal.
When I click a note with the mouse or the left/right arrows I can see that the Halion activity lamp lights up and I get a sound, but on playback there’s no activity and no sound. The track is not muted.
What am I missing ?

Here’s my setup. Maybe that will tell somebody something ?

As I said - mouseclick and arrows produce sound, but no sound when playbacking…
Please help :face_holding_back_tears:

Can you cut down the project itself and attach it here? You could e.g. delete the existing flow and replace it with an empty one.

Hi Daniel,
I sent you a PM.