I am not able to get multi-channel audio files to play correctly. Channels 1/2 are fine if I selectCHOP them but all other channels are corrupt/have no audio. I have tried WAV and AIFF at 44.1kHz and 48kHz. These files were created in Reaper and Quicktime player plays them back correctly.
Movie with an AAC 5.1 track play back all 6 channels correctly.
Could you send us your file(s), both simple CHOP network to play it and the audio file?
Email it to support and I’ll take a look, I also have a MOTU device for testing.