HLS: Error while determining media format

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I’ve got an HLS stream that Roku won’t play: http://content.uplynk.com/ext/21885d134 … ys=efgabcd. I’ve edited the displayVideo() function from the simplevideoplayer example from the SDK to log a bit more info as below:

Function displayVideo(args As Dynamic)
    print "Displaying video: "
    p = CreateObject("roMessagePort")
    video = CreateObject("roVideoScreen")
    video.setMessagePort(p)

    'bitrates  = [0]          ' 0 = no dots, adaptive bitrate
    'bitrates  = [348]    ' <500 Kbps = 1 dot
    'bitrates  = [664]    ' <800 Kbps = 2 dots
    'bitrates  = [996]    ' <1.1Mbps  = 3 dots
    'bitrates  = [2048]    ' >=1.1Mbps = 4 dots
    bitrates  = [0]

    'Swap the commented values below to play different video clips...
    urls = ["http://content.uplynk.com/ext/21885d134fa441488df8e1d7acee8c66/DEPB1325.m3u8?rays=efgabcd"]
    title = "Disney Channel Bumper"

    'urls = ["http://content.uplynk.com/c6e41f94818e46af8b755113ad7a4c07.m3u8"]
    'title = "Finding Dory Ad"

    qualities = ["HD"]
    StreamFormat = "hls"
    srt = "file://pkg:/source/empty.srt"

    if type(args) = "roAssociativeArray"
        if type(args.url) = "roString" and args.url <> "" then
            urls[0] = args.url
        end if
        if type(args.StreamFormat) = "roString" and args.StreamFormat <> "" then
            StreamFormat = args.StreamFormat
        end if
        if type(args.title) = "roString" and args.title <> "" then
            title = args.title
        else
            title = ""
        end if
        if type(args.srt) = "roString" and args.srt <> "" then
            srt = args.StreamFormat
        else
            srt = ""
        end if
    end if

    videoclip = CreateObject("roAssociativeArray")
    videoclip.StreamBitrates = bitrates
    videoclip.StreamUrls = urls
    videoclip.StreamQualities = qualities
    videoclip.StreamFormat = StreamFormat
    videoclip.Title = title
    videoclip.SwitchingStrategy = "full-adaptation"
    print "srt = ";srt
    if srt <> invalid and srt <> "" then
        videoclip.SubtitleUrl = srt
    end if

    video.SetContent(videoclip)
    video.SetCertificatesFile("common:/certs/ca-bundle.crt")
    video.SetCertificatesDepth(3)
    video.show()

    lastSavedPos   = 0
    statusInterval = 10 'position must change by more than this number of seconds before saving

    while true
        msg = wait(0, video.GetMessagePort())
        if type(msg) = "roVideoScreenEvent"
            if msg.isScreenClosed() then 'ScreenClosed event
                print "Closing video screen"
                exit while

            else if msg.isPlaybackPosition() then
                nowpos = msg.GetIndex()
                if nowpos > 10000

                end if
                if nowpos > 0
                    if abs(nowpos - lastSavedPos) > statusInterval
                        lastSavedPos = nowpos
                    end if
                end if

            else if msg.isRequestFailed()
              print
              print "msg.isRequestFailed: "; msg.GetIndex(); msg.GetMessage(); msg.GetType()
              inf = msg.GetInfo()
              for each key in inf
                print key ": " inf[key]
              end for
              print

            else if msg.isStreamSegmentInfo()
              print "Segment Info: "; msg.GetMessage()
              print "Segment Info: "; msg.GetInfo().SegUrl

            else if msg.isStatusMessage()
              print "Status: "; msg.GetMessage()

            else if msg.isDownloadSegmentInfo()
              print
              print "DownloadSegmentInfo: "
              print msg.GetInfo()
              print

            else
                print "Unknown event: "; msg.GetType(); " msg: "; msg.GetMessage()
            endif
        end if
    end while
End Function

The Finding Dory ad that’s commented out above plays just fine

When connected to the telnet port, this following is displayed when trying to play:

------ Running dev ‘Simple Video Player’ main ------
Type args = roAssociativeArray
Type args.url = Invalid
showSpringboardScreen
Button pressed: 1 0
Displaying video:
srt = file://pkg:/source/empty.srt
Unknown event: 20 msg: Stream started.
Unknown event: 37 msg: Segment download started

DownloadSegmentInfo:
Bitrate: 415961
Sequence: 0
Status: 0
SegBitrate: 415
DownloadDuration: 273
SegUrl: http://stg-ec-ore-u.uplynk.com/slices/b … 0000000.ts
SegSize: 153984
BufferSize: 0
BufferLevel: 0
SegType: 0
IPAddress:

Status: Error while determining media format.

msg.isRequestFailed: -5 9
MediaFormat:

Closing video screen

Can anyone think of a reason why the Roku can’t determine the media format for one asset but not the other?