I enabled debug logs. Started Gladiator blu-ray. Initial menu asking for Language appears. I select language then OK. With Dolby Vision enable the Universal logo movement is jerky and takes longer to complete. Then it takes about 30 seconds before I hear the main menu music but the screen is blank. Without Dolby Vision The Universal Logo motion is normal. I select language then OK then the main menu appears within 5 seconds and it works.
Here is the URL for the logs https://paste.coreelec.org/CustomsAncestor
This is definitely the wrong thread for this because as I said, the issue is Dolby Vision, NOT CPM.