Hi,
Yes, after the first post I did see that i was on FW 1.0.3.xxx
Did a FW upgrade and thought this was going to fix it, but I'm seeing the same results. Even with the pre-installed Kodi 16.1.
The settings are on Expert, otherwise I would not see the passtrough option at all.
Cannot see why only I'm getting this problem, when using a standard setup.
I will try a FW reset today and report back.