@bendurso Use the global modulators system. You add one MPE modulator in the global mods container and then assign this to the gain of each sampler.

@d-healey Because it uses the note number and the event ID to clearly identify the event that is associated with the modulation value from the global modulator.

Using the transpose amount will not change the note number which is why it's almost always a better idea than changing the note number.

For future reference, there is a way to do this, explained in this thread

Resolved - https://github.com/christophhart/HISE/commit/86d77029cd7c1760ae05737f908db4fd49359bf3