Verified, I burned this to a BD-50 and played it back in a hardware player. It’s glorious.
Do you mind sharing which authoring tool you used? tsMuxer is my go-to, but as you mention it is having fits with this one.
tsMuxer is what I used. You just have to be careful to keep the audio and subtitle options to a sane level. 32 audio/32 subtitle is the hard limit, but really that’s still too much if you have multiple lossless tracks. I only did one lossless track, to cut down on max bitrate. You could probably get away with more.