Beta Version → Android 8.20.0.26521-beta
Server Version → #1.23.3.4707
When I play a 1080p MKV file with 5.1 AAC audio it will direct play instantly, unless I pick the imbedded SRT subtitle. Then it would just hang. Turn off the the SRT and it worked again instantly.
Here is the File XML,
<MediaContainer size="1" allowSync="1" identifier="com.plexapp.plugins.library" librarySectionID="12" librarySectionTitle="TV Shows" librarySectionUUID="3414cf68-9c02-46de-9211-f979cb311a93" mediaTagPrefix="/system/bundle/media/flags/" mediaTagVersion="1623850176">
<Video ratingKey="75681" key="/library/metadata/75681" parentRatingKey="75674" grandparentRatingKey="75673" guid="com.plexapp.agents.thetvdb://361834/1/4?lang=en" parentGuid="com.plexapp.agents.thetvdb://361834/1?lang=en" grandparentGuid="com.plexapp.agents.thetvdb://361834?lang=en" type="episode" title="If Saturday Be... For The Boys!" grandparentKey="/library/metadata/75673" parentKey="/library/metadata/75674" librarySectionTitle="TV Shows" librarySectionID="12" librarySectionKey="/library/sections/12" grandparentTitle="Marvel’s M.O.D.O.K." parentTitle="Season 1" contentRating="TV-MA" summary="M.O.D.O.K. is turned away by his world conquering peers and forced to slum it with some blue-collar street villains. He intends to use them for his own gains, but a wild night out on the town leads M.O.D.O.K. to something more valuable: adult friendship?" index="4" parentIndex="1" viewOffset="276614" skipCount="1" lastViewedAt="1625627386" year="2021" thumb="/library/metadata/75681/thumb/1621611424" art="/library/metadata/75673/art/1621611425" grandparentThumb="/library/metadata/75673/thumb/1621611425" grandparentArt="/library/metadata/75673/art/1621611425" duration="1452701" originallyAvailableAt="2021-05-21" addedAt="1621611402" updatedAt="1621611424">
<Media id="143627" duration="1452701" bitrate="1428" width="1920" height="1080" aspectRatio="1.78" audioChannels="6" audioCodec="aac" videoCodec="hevc" videoResolution="1080" container="mkv" videoFrameRate="24p" audioProfile="he-aac" videoProfile="main">
<Part accessible="1" exists="1" id="145266" key="/library/parts/145266/1621618030/file.mkv" duration="1452701" file="D:\Media\TV Shows\M.O.D.O.K\Marvel's.M.O.D.O.K.S01E04.If.Saturday.Be.for.The.Boys.1080p.WEBRip.6CH.x265.mkv" size="259734057" audioProfile="he-aac" container="mkv" deepAnalysisVersion="4" requiredBandwidths="2424,1951,1951,1951,1951,1951,1951,1951" videoProfile="main">
<Stream id="309449" streamType="1" default="1" codec="hevc" index="0" bitrate="1234" bitDepth="8" chromaSubsampling="4:2:0" codedHeight="1080" codedWidth="1920" colorRange="tv" frameRate="23.976" height="1080" level="120" profile="main" refFrames="1" requiredBandwidths="2201,1902,1902,1902,1902,1902,1902,1902" width="1920" displayTitle="1080p (HEVC Main)" extendedDisplayTitle="1080p (HEVC Main)"> </Stream>
<Stream id="309450" streamType="2" selected="1" default="1" codec="aac" index="1" channels="6" bitrate="194" language="English" languageCode="eng" audioChannelLayout="5.1" profile="he-aac" requiredBandwidths="197,197,197,197,197,197,197,197" samplingRate="48000" displayTitle="English (HE-AAC 5.1)" extendedDisplayTitle="English (HE-AAC 5.1)"> </Stream>
<Stream id="309451" streamType="3" selected="1" default="1" codec="srt" index="2" language="English" languageCode="eng" requiredBandwidths="1,1,1,1,1,1,1,1" displayTitle="English (SRT)" extendedDisplayTitle="English (SRT)"> </Stream>
</Part>
</Media>
<Writer id="159725" filter="writer=159725" tag="Patton Oswalt"/>
<Extras size="0"> </Extras>
<Related> </Related>
</Video>
</MediaContainer>
