Challange with Subtitle / Switch Audio-Track

Facts:
- Serviio = v1.3.1
- The avi file contains 2 audio tracks, i.e. I can switch from one languague to another

What works:
I can stream the avi file via Blurayplayer.
I can watch the movie.
I can hear the audio.
I can switch via Remote Controller of Blurayplayer from one language-track to another.

What does not work:
If I "Enable the subtile" (see setting below)

  Code:

[x] Enable Subtile
[ ] Enable extraction ...
[x] Enable burned-in subtitles (Only when required)

THEN
I can see the subtitle, BUT
I CAN NOT switch the language track via Remote Controller, so I hear only the first language track.

What am I doing wrong?

Thanks, Kalem

[zip]

That's correct, when you use hardsubs the file is transcoded and only the first audio track is used.