Velocity (scaling) problems Symphonic instrument 32 vs 64bit

[jdly]

Hello,
I have a velocity scaling problem with Motu Symphonic Instrument.
I'm using the old 32bit version as VST plugin with Ableton Live on one PC and the updated UVI 64bit version also as VST plugin Ableton Live on another PC. If I open the same MIDI file with the same MSI sounds on both PC's the Velocities below 127 are NOT the same. With the UVI everything is lower in volume and really annoying if I want to open old mixes I did with the first 32bit version. I guess the velocity scaling is different... Does anyone had the same problem and does anyone maybe have a solution for this? Thanks