Marmoufle

Hello everyone, I just received my powercab 112 plus. i tried to add some IR coming from ML soundlab. I had no problem to add them in the powercab. But ... There is no sound !! They don't work in the PC but used to work in my Helix. I don't understand. Then I tried to add other IR .. for a big part of my IR collection I can not add them in the powercab (failed to add). What can I do ? Everything is up to date (pilots, PC, powercab edit).. Thanks for your help