Unidentified codec: VLC could not identify the audio or video codec S_DVBSUB

Hi All,

I've got a mkv file with 2 audios and 1 sub. When I switch audios, no problem. But, when I switch from "no subs" to the only subtitle, this error is shown:

Unidentified codec: VLC could not identify the audio or video codec

Enabling messages, verbosity level 2, I can see several error, but this one looks like the culprit:

mkv error: unknown codec id=`S_DVBSUB'

I created a ticket on vlc forum:

https://forum.videolan.org/viewtopic.php?f=14&t=157956

Also, uploaded log & sample:

Complete log is on https://pastebin.com/cwgnG8V5

Initial 200MB are here https://we.tl/t-zJw0K1gMWQ

I tried other 3 players and they don't complain. Only VLC does.

Thanks a lot for your help,