On some other Kodi versions/forks, pass-through can be problematic for me. The device I use for audio can handle DD, DTS, DD+, and also 7.1-channel PCM (up to 24-bit / 96kHz) but not TrueHD or DTS-HD bitstreamed.
For a DTS-HD sound-track, I sometimes find it will extract the core DTS track and send that as poss-through, when what I would want it to do is decode the DTS-HD to 7.1 PCM and pass that. (But if basic DTS is all that's available, that should be passed through).
How does MrMC handle that?
Also, are there any central Shield settings for audio that we need to worry about?