Improved EPG guide data apparently from GraceNote, but now I receive this new error in the Mange Channels window, which seems to prevent saving modified channels setup. It seems to indicate that a channel (right column) can only be assigned once ???
There is a duplicate channel mapping
PMS Version 1.7.6.4058 with HDHomeRun Connect and in Victoria/Australia.
Logs attached.
@mikeyman22 Yes, that’s correct, you can only map the guide channel against one device channel. I’m guessing this a case of mapping the 9 guide to 9 HD, 10 to 10 HD, etc.?
@DaveBinM Ah ok yes its for the 'base channel 9, 7 etc. see below example of mapping I have right now:
So I leave channel 71 unmapped, because all of the ‘other’ channel 7 guide data is used on the other channel 7s. With my list of available to choose from being below ie. no channel guide for 71 available:
I’ll make a note of that being missing (I’m compiling a list of things at the moment), but at least 71 isn’t too much of a loss, it’s exactly the same as normal 7 in both content and quality. 
Sorry - I know this is an old thread, but I had this in a list of 200+ channels and flip it was difficult to find the duplicate with this vague error message.
Can I ask that the message be improved to show me which channels have the duplicate.
Sometimes you do receive two versions of the same channel - can be HD and SD, or from two transmitters, so its a shame you can’t have duplicates. But in my case it was a mistake.
