(note that Flac not playing seems a somewhat random issue. See my previous two logs, where the first one failed playing Flac but the second one suddenly did)
11483; 10 Play - Input - K:\_MusicBee test library\UPnP test\Walter Becker - 01 - Door Number Two - MP3.mp3 Output - (http://192.168.2.1:49382/files/709A3B8A1FA4405Fp.mpeg)
11523; 11 Profile - LMS (Lyrion/Logitech Media Server), useragent=iTunes/4.7.1 (Windows; N; Windows 10; 8664; EN; cp1252) SqueezeCenter, Squeezebox Server, Logitech Media Server/8.5.2/1716215514
11530; 12 GetFile[1] 192.168.2.1 - GET K:\_MusicBee test library\UPnP test\Walter Becker - 01 - Door Number Two - MP3.mp3 to 192.168.2.1
11530; 13 GetFile - range=bytes 0-8256988/8256989
11530; 14 Profile - LMS (Lyrion/Logitech Media Server), useragent=iTunes/4.7.1 (Windows; N; Windows 10; 8664; EN; cp1252) SqueezeCenter, Squeezebox Server, Logitech Media Server/8.5.2/1716215514
11628; 15 StateTimer - Loading,old=Stopped
11847; 16 PostSoapRequest - 500,send=POST /plugins/UPnP/MediaRenderer/AVTransport/control?player=d8%3Abb%3Ac1%3A89%3A80%3A77 HTTP/1.1
Host: 192.168.2.1:9000
User-Agent: MusicBee UPnP Plugin
Content-Type: text/xml; charset="utf-8"
SOAPAction: "urn:schemas-upnp-org:service:AVTransport:1#SetNextAVTransportURI"
Content-Length: 352
<?xml version="1.0" encoding="UTF-8"?><s:Envelope s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body><u:SetNextAVTransportURI xmlns:u="urn:schemas-upnp-org:service:AVTransport:1"><InstanceID>0</InstanceID><NextURI /><NextURIMetaData /></u:SetNextAVTransportURI></s:Body></s:Envelope>
11847; 17 SoapRequest:SetNextAVTransportURI:urn:schemas-upnp-org:service:AVTransport:1:InstanceID=0,NextURI=,NextURIMetaData= - <?xml version="1.0" encoding="UTF-8"?><s:Envelope s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body><s:Fault><faultcode>s:Client</faultcode><faultstring>UPnPError</faultstring><detail><UPnPError><errorCode xsi:type="xsd:int">714</errorCode><errorDescription xsi:type="xsd:string">Illegal MIME-type</errorDescription></UPnPError></detail></s:Fault></s:Body></s:Envelope>
11850; 18 SetNextAVTransportURI - Failed - Ignored as a blank URI is probable cause.
22163; 19 GetFile[1] - exit=10054, playtime=10631
24516; 20 Play - Input - K:\_MusicBee test library\UPnP test\Walter Becker - 02 - Door Number Two - FLAC.flac Output - (http://192.168.2.1:49382/files/939522C965308B1Cp.x-flac)
24527; 21 Profile - LMS (Lyrion/Logitech Media Server), useragent=iTunes/4.7.1 (Windows; N; Windows 10; 8664; EN; cp1252) SqueezeCenter, Squeezebox Server, Logitech Media Server/8.5.2/1716215514
24527; 22 GetFile[2] 192.168.2.1 - GET K:\_MusicBee test library\UPnP test\Walter Becker - 02 - Door Number Two - FLAC.flac to 192.168.2.1
24527; 23 GetFile - range=bytes 0-26558156/26558157
24528; 24 Profile - LMS (Lyrion/Logitech Media Server), useragent=iTunes/4.7.1 (Windows; N; Windows 10; 8664; EN; cp1252) SqueezeCenter, Squeezebox Server, Logitech Media Server/8.5.2/1716215514
24638; 25 StateTimer - Loading,old=Stopped
35566; 26 GetFile[2] - exit=10054, playtime=11037
38407; 27 Play - Input - K:\_MusicBee test library\UPnP test\Walter Becker - 03 - Door Number Two - OPUS.opus Output - (http://192.168.2.1:49382/files/BECBE4282A21C9BDp.opus)
38419; 28 Profile - LMS (Lyrion/Logitech Media Server), useragent=iTunes/4.7.1 (Windows; N; Windows 10; 8664; EN; cp1252) SqueezeCenter, Squeezebox Server, Logitech Media Server/8.5.2/1716215514
38419; 29 GetFile[3] 192.168.2.1 - GET K:\_MusicBee test library\UPnP test\Walter Becker - 03 - Door Number Two - OPUS.opus to 192.168.2.1
38419; 30 GetFile - range=bytes 0-7310964/7310965
38419; 31 Profile - LMS (Lyrion/Logitech Media Server), useragent=iTunes/4.7.1 (Windows; N; Windows 10; 8664; EN; cp1252) SqueezeCenter, Squeezebox Server, Logitech Media Server/8.5.2/1716215514
38549; 32 StateTimer - Loading,old=Stopped
38731; 33 GetFile[3] - exit=0, playtime=312
39075; 34 PostSoapRequest - 500,send=POST /plugins/UPnP/MediaRenderer/AVTransport/control?player=d8%3Abb%3Ac1%3A89%3A80%3A77 HTTP/1.1
Host: 192.168.2.1:9000
User-Agent: MusicBee UPnP Plugin
Content-Type: text/xml; charset="utf-8"
SOAPAction: "urn:schemas-upnp-org:service:AVTransport:1#SetNextAVTransportURI"
Content-Length: 352
<?xml version="1.0" encoding="UTF-8"?><s:Envelope s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body><u:SetNextAVTransportURI xmlns:u="urn:schemas-upnp-org:service:AVTransport:1"><InstanceID>0</InstanceID><NextURI /><NextURIMetaData /></u:SetNextAVTransportURI></s:Body></s:Envelope>
39075; 35 SoapRequest:SetNextAVTransportURI:urn:schemas-upnp-org:service:AVTransport:1:InstanceID=0,NextURI=,NextURIMetaData= - <?xml version="1.0" encoding="UTF-8"?><s:Envelope s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body><s:Fault><faultcode>s:Client</faultcode><faultstring>UPnPError</faultstring><detail><UPnPError><errorCode xsi:type="xsd:int">714</errorCode><errorDescription xsi:type="xsd:string">Illegal MIME-type</errorDescription></UPnPError></detail></s:Fault></s:Body></s:Envelope>
39078; 36 SetNextAVTransportURI - Failed - Ignored as a blank URI is probable cause.
52394; 37 Play - Input - K:\_MusicBee test library\UPnP test\Walter Becker - 05 - Door Number Two - PCM.wav Output - (http://192.168.2.1:49382/files/472DD050DD4B6785p.wav)
52406; 38 Profile - LMS (Lyrion/Logitech Media Server), useragent=iTunes/4.7.1 (Windows; N; Windows 10; 8664; EN; cp1252) SqueezeCenter, Squeezebox Server, Logitech Media Server/8.5.2/1716215514
52406; 39 GetFile[4] 192.168.2.1 - GET K:\_MusicBee test library\UPnP test\Walter Becker - 05 - Door Number Two - PCM.wav to 192.168.2.1
52406; 40 GetFile - range=bytes 0-48208715/48208716
52407; 41 Profile - LMS (Lyrion/Logitech Media Server), useragent=iTunes/4.7.1 (Windows; N; Windows 10; 8664; EN; cp1252) SqueezeCenter, Squeezebox Server, Logitech Media Server/8.5.2/1716215514
52517; 42 StateTimer - Loading,old=Stopped
52733; 43 PostSoapRequest - 500,send=POST /plugins/UPnP/MediaRenderer/AVTransport/control?player=d8%3Abb%3Ac1%3A89%3A80%3A77 HTTP/1.1
Host: 192.168.2.1:9000
User-Agent: MusicBee UPnP Plugin
Content-Type: text/xml; charset="utf-8"
SOAPAction: "urn:schemas-upnp-org:service:AVTransport:1#SetNextAVTransportURI"
Content-Length: 352
<?xml version="1.0" encoding="UTF-8"?><s:Envelope s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body><u:SetNextAVTransportURI xmlns:u="urn:schemas-upnp-org:service:AVTransport:1"><InstanceID>0</InstanceID><NextURI /><NextURIMetaData /></u:SetNextAVTransportURI></s:Body></s:Envelope>
52733; 44 SoapRequest:SetNextAVTransportURI:urn:schemas-upnp-org:service:AVTransport:1:InstanceID=0,NextURI=,NextURIMetaData= - <?xml version="1.0" encoding="UTF-8"?><s:Envelope s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body><s:Fault><faultcode>s:Client</faultcode><faultstring>UPnPError</faultstring><detail><UPnPError><errorCode xsi:type="xsd:int">714</errorCode><errorDescription xsi:type="xsd:string">Illegal MIME-type</errorDescription></UPnPError></detail></s:Fault></s:Body></s:Envelope>
52736; 45 SetNextAVTransportURI - Failed - Ignored as a blank URI is probable cause.
63384; 46 GetFile[4] - exit=10054, playtime=10976