Hi Leon,
I just tested EVAL-ADV7625-SMZ and EVAL-ADV7850EBZ with QD882E as source and Astro VA-1831 as sink. I see the same behavior on each board:
* With EVAL-ADV7625-SMZ (X2.3.2) in non-mux mode, AVMUTE status is sent from source to sink. Sink blanks.
* With EVAL-ADV7625-SMZ (X2.3.2) in mux-mode, AVMUTE status is sent from source to sink. Sink blanks.
* With EVAL-ADV7850EBZ (1.61.2), AVMUTE status is sent from source to sink. Sink blanks.
What are you seeing?
-Matt