Reaper Receiving Midi From Controller but Not Triggering Sound?

Hey Guys,



I have an Arturia Minilab here that we're trying to get to work with Reaper.



I have it configured as usual and can see the midi notes being fired in the meters but we're not getting any sound.



I sent a message to Arturia but I don't want to wait until next week to get this working.



I've had no problem with a Korg Keyboard > Midi In of RME PCIe > Reaper. I just need the Arturia to audition patches at the desk.



Not sure what's wrong, but it happens when trying to play Omnisphere, Battery, or Massive.



Any ideas?



Thanks!

Reaper Receiving Midi From Controller but Not Triggering Sound?