Done!
I’ve been having the same issue. I erased everything in all my movies except the AUDIO_TS and VIDEO_TS directories, and manually went to every folder, thinking there was an issue with the bulk ‘get content info’ and got content info for each movie. What then populated in my directories are:
|_____..backdrop
|_____AUDIO_TS
|_____VIDEO_TS
|_____.metathumb
|_____.xml
Still having an issue showing thumbnails. 
