Please follow the steps below.
- Make sure the media player is connected to the Network.
- Install "Java Runtime Blu-ray environment 8 for Blu-ray" as follows:
- In the main menu navigate to "Add-ons" and press OK (remote control).
- On the right side, navigate to "Search."
- Type here: Java
- OK (remote control) and select "Script-JRE for BD-J menus" by Team CoreELEC - 19.4.100 again OK (remote control).
- Restart the media player and wait until the main menu appears again.
- Now navigate to the cogwheel (system), go to the tile "Player" → "Discs".
- Check among other things that the option "Try to go directly to the DV menu" is enabled
- Check if the option "Show Blu-ray menu" has been selected for "Blu-ray playback mode".