This is blank.
This is when blocking the other sources in that Collection.
what channels are you trying to display? there's no filters by genres or keywords so i'm confused
Most likely you have duplicated channel ids. Each channel needs a unique channel id.
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I experienced something like that once before and a complete guide rebuild fixed it. It’s worth a shot.
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I don't want any automatic channels with my collection, just the channels that i choose manually. That is why that part is blank.
got it. how many unique sources are you using in this Automatic Collection? I have an idea that might work.
Just 1 source. Other sources also have the same channels in them like ABC or Fox or ESPN, etc and it is also grouping them in this guide.
wild experiment if you're up for it..
create a duplicate source in custom sources.. then in that custom source, hide all the channels you DONT want in channel collections, then go into Channel Collections and exclude all other sources except that new duplicate one?
Good idea. Will mess with it!
I may have found the issue/bug. So one of my sources, i have the channels for it set to 8000 and up. For that source on the Channels DVR server I have 7 hidden: 8000, 8001, 8002, 8003, 8004, 8005, 8006 because I don't want to use them on any source or collection ever.
In my collection I am adding from a totally different source than the 8000s, which have channels starting at 1000 and up. Some of those channels are duplicate channels that are also the same name as the 8000 source so they will combine those in the guide even though I don't add that channel/source/number.
Problem is on the server I hide those channels in that source with the red Stop Sign looking thing, however when I add the source on clients, those channels are listed and not hidden with the Stop Sign and I guess that is why Channels is adding them as a duplicate in the Guide (even when it's not from the same source.
Hope that makes sense.
Tried this. Doesn't work unfortunately 
Unfortunately Channel Collections just store the
/devices channel GuideNumber for HDHR tuners (which is the channel number, like 2 or 2.1)
and
/devices channel ID for TVE and M3U sources (like cspan)
So when you look at your channel collection, you (and CDVR) can't tell which source it's from.
/dvr/collections/channels
So when you put your collection together and you choose a source form the drop box and add a channel, it's not actually choosing from that source/channel necessarily? Seems like a very crusty way of implementing channel collections if it is adding duplicates and sometimes wrong channel numbers from a source you don't choose. How does one simply put together a guide/collection of channels when there are multiple sources with the same channel in it??!?!?
I would figure that numbering them differently like below when setting up sources would differentiate them:
-For Example-
Source 1: ESPN Channel 6001
Source 2: ESPN Channel 7001
Source 3: ESPN Channel 8001
If I add source 3 ESPN channel 8001 to my collection that is the only one I want listed in the guide, not all 3. Simply pushing ignore on 2 of 3 of them in their individual sources doesn't fix the problem, still shows all 3 in the guide/channel collection.
It is to display the channel logo to you in the display, but what it saves in the collection /dvr/collections/channels is only what I said.
You can view what is saved by looking at that API endpoint.
That's only available in Automatic Channels, which is added to whatever channels you put in the collection.
How are you adding the channels to the collection? You should be able to pick and choose the ones you want to include manually.
When you view the collection, there is a button to remove the channels you don't want in the collection. In the screenshot from the server app I've attached, I have two choices for IFC from different sources. I added 6088, so it's greyed out in the selection window. (I've also circled the remove button.)
The other option, 734, isn't listed because I didn't include it, as seen in the screenshot from my iPhone app. Only the channels I choose to add get listed in the channel collections. I never touched the automatic settings, and I don't have to block the channels in the source settings. Hope this helps — smile
Here is an example of what I've been talking about where you have more than one source using the same channel ID. I just created three sources, with one channel in each source, using the same channel-id.
Grid guide
Adding the Source2 channel to a collection
Source2 channel added to the collection
Collection as stored in CDVR
This is what happens with Channel Collections when you have duplicate channel ID's!
If a picture is worth 1k words, that's 11,000 words there.
And just for grins, I disabled the channels in Source1 and Source3 and rebuilt the collection again using the channel from Source2.
Going to the guide still shows the disabled Source1 channel in the collection and trying to play it errors out.
2026/03/07 19:03:24.544215 [HLS] Couldn't generate stream playlist for ch10001-dANY-ip192.168.1.8: channel not found
Here are the Custom M3U channel Text playlists for each of the three sources, so those wanting to easily duplicate what I did can copy/paste them into the three source settings 
You just need to edit the tvg-logo= to use your chosen channel logos. As you can see I'm using 4x3 logos I uploaded to my CDVR server.
Source1
#EXTM3U
#EXTINF:-1, channel-number="10001" tvg-chno="10001" channel-id="channel-id" tvg-id="tvg-id" tvg-name="tvg-name" tvg-logo="http://192.168.1.4:8189/dvr/uploads/5/content",Channel1Name
# yt-source=https://www.youtube.com/@KittenAcademy/live
Source2
#EXTM3U
#EXTINF:-1, channel-number="10002" tvg-chno="10002" channel-id="channel-id" tvg-id="tvg-id" tvg-name="tvg-name" tvg-logo="http://192.168.1.4:8189/dvr/uploads/6/content",Channel2Name
# yt-source=https://www.youtube.com/@KittenAcademy/live
Source3
#EXTM3U
#EXTINF:-1, channel-number="10003" tvg-chno="10003" channel-id="channel-id" tvg-id="tvg-id" tvg-name="tvg-name" tvg-logo="http://192.168.1.4:8189/dvr/uploads/7/content",Channel3Name
# yt-source=https://www.youtube.com/@KittenAcademy/live
I'll be back from work in a few days so will mess with it more then. Are you saying it's impossible within Channels to get a clean guide with a collection of channels that happen to have duplicates in different sources?
Try what I did yourself and tell me.
I'm just pointing out how it works and that multiple channels using the same channel ID are going to cause these issues with Channel Collections. If all your channel ID's are unique across your sources, you won't have this problem.
I make sure the playlists I get from my sources use different channel ID's.
Like Distro, Frndly, Plex, Pluto, Samsung, Tubi, TVE, various other M3U sources, etc.
It also helps that I run multiple CDVR servers to keep some sources separate.
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