The very first video/pict-recording for the "Chaos Undivided"-arc, mission name "The Enemy Below", is only playing video, no audio outside of the general game's ambient music.
Reading the journal entry afterwards clearly suggests that this video clue should have included audio as well, referencing the three traitors talking about a plan, etc.
All video hints/pic-recodings only play video, no audio at all.
Video hints/pict-recordings should play both video and audio where applicable.
100%, happens with every instance so far, Relog does not help.
Not gamebreaking, but still major loss of information, immersion, story context.
No additional codecs are required, running Win 10 Professional, not N.