it’s really with USB rather than old style midi connection.
The behavior: with Piano V3 and Pianoteq standalone, and MF as controller, I see the keys being played on the instruments keyboard but without notes sounding.
With other instruments (eg. Prophet), no problem.
With other controllers (Keystep 37, Yamaha CP-33) no problem with Piano V3 and Pianoteq.
I’m I missing something?
I should further add that with Kontakt’s Grandeur (a piano) with MF as controller, I can hear faint notes (faint in contrast with K37). It seems like a MF velocity problem with pianos (Piano V3, Pianoteq, Kontakt’s Grandeur).