HLS-LIVE Sliding Window Issues

Trying to implement a sliding window and having some issues. On iOS devices the scrubber bar does not display however the rewind 30 second button does. If you press that a number of times you can rewind to the beginning. Any way to get the scrubber bar to work?

Have tried both AMS 4.5.7 & 5.0.7. Any help is greatly appreciated.

httpd.conf:

<Location /hls-live>

    HLSHttpStreamingEnabled true

    HttpStreamingLiveEventPath "../applications"

    HttpStreamingContentPath "../applications"

    HLSMediaFileDuration 8000

    HLSSlidingWindowLength 450

    HLSFmsDirPath ".."

    HttpStreamingUnavailableResponseCode 503

    HLSAMFToId3MappingFilePath conf/AMF_to_Id3_Mapping.xml

########################################

# Cache-control header configuration start

# Specify the max-age(in secs) to set in the Cache-Control header

# for different response types (m3u8, ts, drmmeta,...).

# A value of -1 turns off setting the cache control header.

    HLSM3U8MaxAge 2

    HLSTSSegmentMaxAge -1

    HLSMetaMaxAge 3600

    HLSMaxEventAge 300

# Cache-control header configuration end

########################################

# Uncomment the following directives to enable encryption

# for this location.

#    HLSEncryptionScope server

#    HLSEncryptCipherKeyFile "../creds/liveeventkey.bin"

#    HLSEncryptKeyURI        "https://<ServerName>/hls-key/liveeventkey.bin"

    Options -Indexes FollowSymLinks

</Location>

Application.xml:

<Application>

    <StreamManager>

        <Live>

            <!-- When enabled, the server will assume that incoming live streams have -->

            <!-- timestamps that are based on an absolute clock, such as a SMPTE time -->

            <!-- signal contained within the encoder's input source.                  -->

            <!-- Default is false.                                                    -->

            <AssumeAbsoluteTime>true</AssumeAbsoluteTime>

            <!-- Allow take over so that encoders that go down (for some reason) and  -->

            <!-- and come back up can immediately republish.                          -->

            <PublishTimeout>0</PublishTimeout>

            <!-- This configuration takes care of situation when the timestamps of    -->

            <!-- certain messages in internally or externally published streams don't -->

            <!-- honor absolute clock contract.                                       -->

            <!-- The possible values are listed below:                                -->

            <!-- 0 disables the work around and is default if the configuration is    -->

            <!--   not present.                                                       -->

            <!-- 1 handles the scenario for externally published streams only         -->

            <!-- 2 handles the scenario for internally published streams only         -->

            <!-- 3 handles both of above                                              -->

            <AdjustForZeroTimeStampMessages>2</AdjustForZeroTimeStampMessages>

            <!-- When enabled along with AssumeAbsoluteTime, the server will          -->

            <!-- assume that incoming live streams will always maintain the           -->

            <!-- timestamps based on an absolute clock across server and stream       -->

            <!-- restarts.                                                            -->

            <!-- Default is true.                                                     -->

            <AdjustForRecordingRollover>false</AdjustForRecordingRollover>

        </Live>

    </StreamManager>

    <HLS>

        <MediaFileDuration>8000</MediaFileDuration>

        <SlidingWindowLength>450</SlidingWindowLength>

    </HLS>

</Application>

Event.xml:

<Event>

  <EventID>test</EventID>

  <Recording>

    <FragmentDuration>4000</FragmentDuration>

    <SegmentDuration>400000</SegmentDuration>

    <DiskManagementDuration>1</DiskManagementDuration>

  </Recording>

<HLS>

    <MediaFileDuration>8000</MediaFileDuration>

    <SlidingWindowLength>450</SlidingWindowLength>

</HLS>

</Event>