Hi Tom: Thank you for your continued assistance here. To answer your question, yes, they are all AVC. However, I have 3d Movies without this issue that are also AVC. What separates the working titles from the non-working titles is the audio. The audio for the non-working titles is TrueHD. The working titles are DTSHD. Just to refresh:
3d movies with TrueHD seem to be the problem. This included Minions 3d, Secret Life of Pets 3d, and Enchanted Kingdom 3d. 3d Movies that used DTSHD were fine.If I switched to the AC3 5.1 track on the above 3d movies, the movies would work correctly. non-3d movies worked correctly, including movies using the TrueHD track. Example - Transformers Dark of the Moon.The above 3d movie issue happened both with audio passthrough enabled and non-enabled.
Luckily most of the 3d movies are DTS-HD.
This is a new issue that began a couple weeks before my first post. Prior to that, everything worked great.