Channel Collections showing wrong channel

[madplanet]

I have two sources, HDhomerun and a curated list of channels in an M3U file. I have set the IPTV list to ignore channel numbers in the file and start at 7000.

When I create a Channel Collection I can see the channel to add in the drop down however the channel added is showing the original channel id and is then matching a channel from the HDhomerun and not the IPTV. For example channel 7014 when added shows as Film4 (14).

If I turn off the HDhomerun source the channels add correctly, but then when I re-enable the source they're incorrect.

Does this sound like some sort of corruption? Anyone else had this issue and any suggestions on how I fix it?
Thanks

[tmm1]

This can happen if your m3u doesn't have unique/stable channel-id entries so the collection can keep track

[madplanet]

Thanks for the reply. In this instance my m3u file has ID's starting at 1, which looks like it overlaps with HDHomeRun hence I figured the ignore channels ID's should ignore the numbers in the m3u and apply the starting point (for me 7000).

Given that if I browser the channel list it shows the newly assigned (7000+) number shouldn't it now be ignoring the ID from the m3u?
Thanks

[madplanet]

Just to add, I've noticed that the service I'm using for EPG is adding in two fields which are related to channel numbering, 'tvg-chno=' and 'channel-id='. When reassigning numbers does Channels change the number for both of these fields? Could this be the reason why Channel Collections is picking the wrong channel?