Finally got my MakeMKV default track selection working the way I want using the FLAC profile.

-sel:all,+sel:(attachment|((favlang|nolang)&audio)|((favlang|nolang)&forced)|video),-sel:(core),+sel:(!havelossless&favlang&audio),=100:all,-10:favlang

• Selects the attachment (JPEG images, added to MakeMKV in v1.8.8)
• audio and forced subtitles (short foreign audio translation) in my favorite language or where no language has been specified on the track
• all video tracks
• Deselects the core audio from any HD tracks and re-selects audio tracks if there's not a lossless track in my favorite language
• Puts all tracks at priority 100 and favorite language tracks at 90 (lower priority tracks come first)

https://www.makemkv.com/forum/viewtopic.php?f=10&t=4386

#MakeMKV #Settings #Transcode