I assume those are DLNA renderers?
If so, in MC's DLNA Controller settings for the zone (right-click on the KEF zone), try disabling SetNext support.
Thanks again Bob. Tried your suggestion but MC still won't progress to the next track
Log:
Media Center; Version: 26.0.29 (64-bit); Types: 2147483647
10488495: 123145311502336: Playback: CPlayerZoneDisplayInfo::UpdateFileInfo: Zone {KEF LSX} Playback state is PLAYING but GetPosition is returning 0. Estimated = 743501, Returned = 0
10488495: 123145311502336: Playback: CPlayerZoneDisplayInfo::UpdateFileInfo: Zone {KEF LSX} Refreshing DLNA device state Position 743501, Duration 266000
10493329: 123145317941248: Sharing Plugins: CUDPSocketReader::Accept: Finish (34088 ms)
10493330: 123145305063424: Sharing Plugins: CHTTPListenerWorker::HandleConnection: Start
10493330: 123145305063424: Sharing Plugins: CHTTPListenerWorker::HandleRequest: UDP: 192.168.0.13: NOTIFY:
http://239.255.255.250:1900*
10493330: 123145305063424: Sharing Plugins: CSSDPWorker::ProcessNotify: ssdp:alive: uuid:03086191-9802-10ff-80d5-88dea98db7f3::upnp:rootdevice
10493330: 123145305063424: Sharing Plugins: CHTTPListenerWorker::HandleConnection: Finish (0 ms)
10493340: 123145317941248: Sharing Plugins: CUDPSocketReader::Accept: Start
10493341: 123145317941248: Sharing Plugins: CUDPSocketReader::Accept: Description: CListenerBase::CListenerBase [UDP]
10493341: 123145317941248: Sharing Plugins: CUDPSocketReader::Accept: Finish (0 ms)
10493341: 123145305063424: Sharing Plugins: CHTTPListenerWorker::HandleConnection: Start
10493341: 123145305063424: Sharing Plugins: CHTTPListenerWorker::HandleRequest: UDP: 192.168.0.13: NOTIFY:
http://239.255.255.250:1900*
10493341: 123145305063424: Sharing Plugins: CSSDPWorker::ProcessNotify: ssdp:alive: uuid:roku:ecp:3266AV196565
10493341: 123145305063424: Sharing Plugins: CHTTPListenerWorker::HandleConnection: Finish (0 ms)