Tested the image. It does seem to be working!
Though the use of alternate audio tracks has kind of complicated things. Both versions have an audio hiccup at the time of the cut, so it’s hard to tell if it will actually be clean when the appropriate audio is in place.
I think that’s because of how I cut the audio : I did it in TS Muxer by setting the cut Start and End points, but when I created the second part I used the audio starting at the next frame instead of the last frame of the previous section (some small # ms difference).
I’m going to test it again soon with different audio and I’ll let you know whether or not that corrects the issue.