Blackbox external midi controller

hi there,

I am trying to setup a midi controller (faderfox, but also tried with others) which controls pitch, loop start and loop end of a sample.
Most of the time it works most reliable with pitch but with loop start and loop end only (if at all) one of them works.
any idea? it looked like a straight forward way with midi learn and global midi in to omni.
blackbox is update to latest firmware.

thanks in advance,
sebastian

could someone share best practices for assigning cc to a parameter.

I do have quite some different behaviors here:
most of time I have problems with loop start and loop end. sometimes it works only after I assigned another different parameter. sometimes changing the parameter values works e.g. setting loop end to zero, sometimes setting the amount to -100% instead of 100%.

thx in advance