I have some FLAC files that are 88.2 kHz 24 bit. When playing, the TV Live does’t send the audio out, neither HDMI nor optical, whle the time counter advance.
I’ve seen this issue have been reported also for the HUB version.
I can play 24bit/44.1kHz, and 24bit/96kHz .flac filess output via HDMI pass through, although they won’t play gapless. Receiver confirms it is receiving the source audio bit/samplerate from the SMP. My old WD Live will play them too, not sure on 88.2 kHz, I don’t have any but I think it’ll pass through up to 24/192. Maybe try some different sample rates, otherwise something in your setup must be wrong?