Midi track send message in latch to drum program

Hi guys,

I have an issue and I don't see where is the mistake.

I have a Midi track that send midi to an drum program, but I saw the effect only when I active the latch mode : that's not play the pads when I'm in play, neither in overdub, but when I'm in overdub + Note repeat that trigger some pad when my midi track play. Very weird isn't it ?

The "Midi input" of the drum track is set on "None", the "Send to" of the Midi track is on "none" too,

I don't understand where is the problem really.

Cheers