TrueHD not working on Onkyo TX-SR606 with HDMI cable connection, why?

[tzvish]

Hello,

I have been trying to fix this issue for days,
I have a network media tank HDX1000 (a multimedia pc) which streams to my Onkyo TX-RS606 receiver legal m2ts files which some have trueHD audio on monster hd700 HTMI cable.

previously I used optical connection because I couldn't hear any audio via HDMI, then i found this forum and turned off the "HDMI Audio Out" feature as suggested here and now audio streams work - even DTS-MA (HD), thanks.

But, trueHD just doesn't work - I have legal sample of m2ts which was released by DD of Dave Matteus Band and the receiver just doesn't display it's trueHD icon when this media is streamed, also no sound is played.

I'd love to know if someone knows anything in order to make things work here?

been trying things and tweaks for day, also if anyone has other truehd samples that i can test on.