I'm working on a Roku Bright script using scene graph that is going to play HLS videos (VOD and live), Press option button and set "caption mode: <on>" but closed caption still not display.
even popup showing message "no caption available" or "no caption or audio selection available" Same stream I see the subtitles on track 1 when I play out in VLC player.
Bright script code is -

   inner = createObject("RoSGNode", "ContentNode")
    inner.url = videoUrl
    inner.streamformat = "hls"  
    inner.StreamBitrates = [1920]
    inner.StreamQualities = ["HD"]   
    inner.SwitchingStrategy = "full-adaptation"
    m.innerVideo.enableUI = false
    m.innerVideo.visible = true
    m.innerVideo.setFocus(true) 
    m.innerVideoTitle.visible = true     
    m.innerVideo.retrievingBar.visible = false 
    m.innerVideo.enableTrickPlay = false  
    m.innerVideo.retrievingTextColor = "#000000" 
    m.innerVideo.bufferingTextColor = "#000000"
    m.innerVideo.autoPlayAfterSeek = false
    m.innerVideo.bufferingBar.visible = false 
    m.innerVideo.bufferingBar.opacity = "0" 
    m.innerVideoTitle.text = roAssocArray.videoTitle
    m.innerVideo.content = inner
    m.innerVideo.control = "play"

Contents of the stream's m3u8 -

EXTM3U
EXT-X-VERSION:3
EXT-X-STREAM-INF:BANDWIDTH=3211072,CODECS="avc1.77.41,mp4a.40.2",RESOLUTION=1280x720
chunklist_b2931072.m3u8
EXT-X-STREAM-INF:BANDWIDTH=1231072,CODECS="avc1.66.32,mp4a.40.2",RESOLUTION=640x360
chunklist_b1131072.m3u8

Please Help us and provide a better example.
Thankyou.