Okay found the issue, AVIDemux is not able to process your file correctly.
for now there are 2 solutions (until I figure out why AVIDemux is choking).
In your profile either set
PreConversionCommercialRemover=false
OR add
CommercialMergeTool=ffmpeg
Second option is better and FASTER and will also fix the root cause of the problem.
Let me know if that works for you.