Load subtitles from file in MobileVLCKit-prod

[Terius]

Hello,
I would like to load a subtitle file using the method:

- (BOOL)openVideoSubTitlesFromFile:(NSString *)path;

however every time it returns false. I load the file from the application bundle so the path (argument) looks like:
/private/var/mobile/Containers/Data/Application/43304090-E7D6-400F-8A79-F6DDD6969E41/BlackMirror.SRT

I use the MobileVLCKit-prod (2.7.9)
Tried on iOS 9.3.5 and iOS 10.3.1, same result on both devices.

I tried to search through the topics on this forum but found only ones related to VLC app and not custom library integration.
Please help.

[Jean-Baptiste Kempf]

Please share your logs.