Similar issue for me with complete loss of audio, same system update date. No changes made to very simple setup.Its been sometime since I have had any audio drop issues until this past weekend. We watch two movies...Anaconda 2025 and Zootopia 2. Both not only had audio drop out but it was permanent...as in complete loss of audio, I had to stop and restart the movie to get audio back. Previously any audio drop outs were only for a few seconds.Nothing has changed with my setup, cables or chain. Just V->AVR->Projector. Nothing fancy in the chain.
The Strato V shows that system was updated to kOS 10.23.1-26489 on January 12.
Happened once in January after the update and again last night (Game of Thrones S1 and S5).
Will probably send another email to support with approximate date(s) and time(s). I hit play / pause in rapid succession five times to give them an event to check the logs.