UHD Creator loses WD Intro

[wolflop]

Coco and Uhd Creator. Walt Disney intro disappeared after generating the UHD. Sound of the intro runs, but no picture. Pixel Intro after that runs ... But in the original mkv the intro of WD is available and the movie with intros can be played easily.

[Mona]

To better check the problem, please provide a download url of the source problematic file and the dvdfab_internal.log file and fabcheck_internal.log file. Thanks.