Now I have a particular big hdmi handshake, because I'm using a HDFury Vertex 2 as the input hdmi selector and hdmi outputs to the Displays (TV & Projector). The Sound hdmi outpout goes to a single HDMI input on my AVR that still works only for audio. Unfortunately my AVR DENON HDMI card has failed. No output works and some inputs work only for audio and fail for video.
The right way to do bluray authoring is to generate a single M2TS file for the whole album. Regardless of whether the album contains gap or gapless songs.
But this does not avoid the problem with the very beggining first song. They should "master" or "author" the Bluray with some seconds of silence at the beginning of the album, to give enough time for everybody's hdmi handshake.
This problem has happened always with movies and music Blurays. It goes unnoticed when the sound starts with an amount of silence or a low enough fade-in.
In this album, "Yours Is No Disgrace" starts immediately with the high volume first guitar/drum/bass note. And we always lose it
I have created 10 seconds silence TrueHD Atmos file to make an initial append with MKVToolNix for the albums I really like. But we shouldn't make this effort.
I wonder why the Authoring Technicians, or the Quality Assurance testing or whoever do not address this problem that is very easy to solve.