Velocity qestion

This making me sweat really…
when using sertan synths in cubase 8 pro then hitting onmidi keyboard or change velocity in pionoroll’’’ will make a diff

however today i noticed that this dont work anymore in some synth ‘serum and sylenth1’’ no matter how i do i cant get the these synths to reg diff velocity. what am i doing wrong? this problem wassent here yesterday

no pirate copys here btw, got my usb licence so no pirate bugs :smiley:

Is this happening on the same presets of the same instruments as was working yesterday?..
because, just because you send velocity data to an instrument, that doesn’t necessarily mean that the receiving preset is set to to respond to it.