Hello. I noticed that setting a language track to default does not help. For some reason, the media player ignores that parameter and selects the first track. The solution is to sort tracks so that the selected track that needs to be defaulted is in the first place. I don't know what causes that default parameter to be ignored. I tried different media players with the same issue. Also tried changing default track with MKVToolNix. Maybe it's caused by the latest Windows update. I am using Windows 10.

