Search in ProgramData\Team MediaPortal\ for some tv channels and you should find the logos. If I remember correctly they are stored in the fanart folder besides thumbnails, posters etc. (I’m with phone and can not check). Removing them there should make MP2 load the new ones. Apart from this every two weeks they should be loaded automatically.I too am struggling with getting Logos to update.
I am running MP2.3.2. I successfully added some aliases to the Logomanager site and they did update automatically within a day. I then added some new logos to the Logomanager site, they were added, but it has been weeks since they were added but the new logos have yet to appear in the guide. I have just tried deleting all the logos in "ProgramData\Team MediaPortal\MP2 Server\Logos\Tv-Flat Default" and rebooted computer and restarted MP2. The new logos still do not appear, but the others are there. I checked the logo directory and all the logos are still gone. So the logos must be stored somewhere else or just downloaded and stored in RAM. How do I get the new logos to download?
So they must be cached somewhere else, the Thumbs\FanArt directory was the only one that showed files when I searched for .png files in the Team MediaPortal dir.
Check also the MP2-Client folder, it has also a FanArt folder.When the client also caches logos that it got from server, then the cache needs to be cleared for logos as well
Changes on the site have to be accepted by an admin before they're made available, until they've been reviewed they're listed under Suggestion/List Open. There's a a backlog going back to October at the moment.I then added some new logos to the Logomanager site, they were added, but it has been weeks since they were added but the new logos have yet to appear in the guide.