Server Version#: Synology DS718+ DSM 6.2.3-25426
Player Version#: 4.34.4 (1.20.0.3181 installed on NAS)
Tuner Make/Model: HDHomeRun Connect Duo HDHR5-2DT
Guide/Lineup name: Freeview Winter Hill transmitter
Using XMLTV?: No
Channel number/Name: channel 1 BBC1 NorthWest
I cannot view the first channel (BBC1 Northwest) on Firefox browser (running on Windows 10 64-bit); have tried re-scanning channels and re-loading EPG. Note that the HDHomeRun iPhone app can see this channel perfectly, while the PLEX iPhone app loads the video but not the audio stream - has to be manually connected to English (MP2) everytime for this channel.
Update: the Windows PLEX app loads channel 1 perfectly, and today the iphone app is able to play the audio stream for this channel. Still an issue for viewing using Firefox (and Chrome), but this seems to be an obscure bug, with an acceptable workaround.
When you say channel not visible - are you referring to when attempting to tune the channel? I would expect the channel to be visible in the guide grid
If the problem is arising when you have automatic selection of audio tracks on your account, then please provide logs of the problem and screenshots and indication of time the test was done