New to Reason and music production in general, but i have a question. I'm using an Akai MPK mini mk2, and it works with most devices, such as the NN19 sampler. For whatever reason (pun intended) though, when i try to use it to play the slices of a sample via the Dr. Octo Rex loop player, it wont play the sounds. I can play the slices by clicking them, but can't use the keys. Does anyone know how to fix this?