Cannot create ISO or burn to Blu Ray : The Problem with People.

[Movies99]

Used Streamfab 6.2.0.1 to download the movie "The Problem with People", but using DVDFab 13.0.2.8, I cannot create either an ISO or burn to BD the mp4 file.
Tried it on version 12 of DVDFab and it fails there too.
see attached log for my latest ISO attempt.
The Problem with People.txt

[Mona]

Did you try to disable the GPU and use only Software to do the conversion?

[Movies99]

Mona, I tried again using version 13.0.2.8, this time with the GPU setting to off, and it works a treat.
Switched GPU on again and that attempt failed, but at least I can now try switching it off for those files that pose a problem.
Many thanks.