You'll kick yourself. It's the field that says Scan type: Interlaced.Andy

The usual advice is to use MediaInfo and dump out exactly what type of file it is. Perhaps it's not supported?   https://g.co/kgs/ZCVZpP   Andy 

So you can export just audio and it won't include muted tracks. You could repeat this for each file. That's about as close as I think you can get. Andy 

Can I do my once in a while grumble that HEVC photos are still not supported in PS23. Even weirder if HEVC video is. Grumble done. Andy 

Hilltops:Thanks for the quick reply, saby. I wish I wouldn't have to install QuickTime because I've bad experiences with the intrusive ways of this app. Is there no other way? And why is it that some .mov files are not causing any problems upon import?  Mov, like many other media file formats, is a container and there can be many ...

Have you used Avisynth (just Google ''Avisynth trim''); it's a scripting language for automating video processing.   Andy 

I reproduced the problem too so yes, there must be something about that 12 limit. Andy  

I wonder if it's running out of memory? What does task manager show?   Andy 

saby:In the French forum a user had the same problem. After he removed the 01/07/2020 Windows 10 KB, he could open Pinnacle Studio. Did they say what the KB number was? Windows tells you the date you installed it: I don't see any KB issued that date. Andy 

The BluRay plugin is for creating the chapters, menus, etc and burning that to a disk, etc. It sounds like you don't need that and could just export your project video and audio in a suitable format (MTS maybe?) and import that into DVD architect.   Andy