Instruments doesn't charge automatically?

I choose this musiciens : flute, clarinet, violin cello and piano.
The only instrument that was charged automatically by Halion SE was the piano. (the flute is in "first contact’ en the others nothing)

What’s wrong?

Did you do a full installation, i.e. including HALion Symphonic Orchestra?
Because most sounds will be chosen from that library.

This can also be caused by a licensing problem, so try running the default licensing maintenance task from within eLicenser Control Center.

I can download the sounds manually, but when I choose a model like string quartets, the correct sounds are not downloaded.

What happens if you go to Play Mode and choose from the menu Play > Apply Default Playback Template ? That should load all the appropriate sounds into HALion.