Can you manually copy the TV Logos folder from a backup location?
What I ended up doing is redo the setup by cleaning the Channel and Guide data to force the logo downloads and then restored from the original backup afterwards...(See first pic)
I also changed the Cover Art folder location not to be on the C drive for future but that's not the point...
When loading (See 2nd pic) the guide data, there should be an option to force the image downloads along with the other options available so we don't have to start from scratch and it could also be useful to get updated TV Logos from XMLTV.
Thx!