Kodi does allow as shown mixed unforced and forced subtitles. See for example:
https://forum.kodi.tv/showthread.php...339#pid1516339
My question is about what I am doing wrong in bd3d2mk3d, what boxes and I not checking or should be checking?
And as a followup in case Kodi simply does not work properly on a 3D mkv, can I check both subtitles in bd3d2mk3d, use 1 to extract forced only and set to default, and, use the other as a second subtitle "track" so that I can play either one? Will they both save to the mkv? Edit - looks like it does work but would have been slightly preferred in one file.