The left view in [0] seems to be taken by a camera attached to the booster/interstage, viewing forward while the right view seems to be from a camera on the up

The left view in [0] seems to be taken by a camera attached to the booster/interstage, viewing forward while the right view seems to be from a camera on the upper stage. A schematic of the rocket was shown at [1] if you want to get an idea what the rocket looks like. After reviewing the separation sequence, I would say that fairing separation failed. Right after MECO (main-engine cutoff) was called out, there is white/blueish light appearing in front of the upper stage. This makes me think that the fairing should have opened at that moment but it did so only partially and that this is sunlight shining through a gap. Shortly after, the upper stage was separated from the lower stage and was pushed away until being stopped by the still closed fairing. Then the upper engine ignited and now actually pushed the second stage through the fairing. God knows what was already damaged at that point. Edit: it seems like this is exactly what happened. There is a video [2] (made by Scott Manley) with a side by side view of two stage separations which lets you see what should have happened when. Just watch that. [0] OPs link: https://www.youtube.com/watch?v=8jlQmW7mnYM&t=3740s https://www.youtube.com/watch?v=8jlQmW7mnYM&t=3740s [1] https://youtu.be/8jlQmW7mnYM?t=2177 https://youtu.be/8jlQmW7mnYM?t=2177 [2] https://www.youtube.com/watch?v=Pq-a_F6F2xo https://www.youtube.com/watch?v=Pq-a_F6F2xo