Hardware: Fire TV Stick 1. Gen with Kodi 17.1 (.apk downloaded from kodi.tv) and Kodi 17.1 on Windows 8.1
debug.log: https://pastebin.com/hdDg2xTq
Kodi ignores the default audio language setting in Player settings -> Language -> Preferred audio language when i playing a VIDEO_TS dvd rip. The same video converted to MKV (MakeMKV) and the setting is respected.