[HELP] Hybrid introducing audio delay that is not present in source material

[4i4oVi40]

• check what happens if you:
  • use FFmpeg in Hybrid as muxer
    
  • disable the delay handling in Hybrid while using MP4Box and FFmpeg as muxer
    

I select FFmpeg as muxer at:
Config > Containers > FFmpeg instead of MP4Box

However how do I disable the delay? I tried:
Config > Input > Ignore delay from input
But it doesn't make any difference. Both MP4Box and FFmpeg don't seem to be affected by "Ignore delay from input".