So, at least for VLC we may now have a workaround but clearly it would be better if the relevant Blu-Ray library was 'fixed' so as not to get stuck in the first place. Unfortunately the trick of pressing return did not work for them. Again as a guess these maybe using the same open source library for processing Blu-Ray menus. I also more recently have been able to try newer alternative Mac Blu-Ray player software and seen a similar issue with the same titles of them getting stuck at the same point.

A guess might be that this is selecting whatever default choice the non-displayed intermediary screen might be showing. However I did discover after upgrading to VLC 3.0.10 although that may have been nothing to do with it that if/when this problem occurs you press the Return key on the Mac this does seem to cause it to continue to the next stage i.e. For Blu-Rays you instead have to do the following. For normal DVDs there is a simple tick-box in the Open Disc dialog but no such option for Blu-Rays. Until now the only option has been to disable use of Blu-Ray menus completely. In at least one case there should be an intermediate screen allowing the user to select which language the Blu-Ray should use. Typically what happens is that VLC loads the disc/ISO/folder plays the intro animation or movie studio logo and then gets stuck before it can display the full BDJava menu. Some Blu-Ray ISOs cause VLC to get stuck when loading the menu.

Mac blu ray player problems