Mapping an existing channel duplicates all channels

[Esteban]

Everytime I map an additional channel in the config/capture sources tab, all epg channels are duplicated and added to the list of channels when the xlmtv.xml is updated. The result is a big mess, and the only way I've been able to fix it is to empty the epg in capture sources and start over again. It gets tiresome, since I have to map each one manually.

In effect, I can't edit the channel mapping. I can only start over each time I want to map and enable a channel that is already included, but not mapped or enabled in the channel list. Am I doing something wrong?

I'm using mc2xml to update xmltv.xml

[Esteban]

Could it be that mapping channels on both tuners to the same channels causes the duplicates?

I'm going to try whurlston's HDHomeRunScanTool to see if I can automate this. I often have to map something additionally because the reception is rarely good enough to get all the channels I want at the same time.

[martint123]

I think that if you add the extra channels by importing an EPG then it is ok.
It is when you manually add a channel that it is considered to be a different channel to any existing one with the same name.

(not 100% sure about the above, but that is the impression ISTR from an earlier post).

[Esteban]

I think that if you add the extra channels by importing an EPG then it is ok.
It is when you manually add a channel that it is considered to be a different channel to any existing one with the same name.

Thanks. I don't actually add anything. I just map one that was previously not enabled. All looks good when I exit capture sources, but the guide then has two instances of every channel, and different channel numbers for each. When I go back into config and edit the capture sources, the duplicates are now shown.