Ok. I think I understand your problem. What receiver are you using?
Enigma2 will log services it finds during a blindscan or transponder scan. But it will only store channels in the main satellites or channels list if the type is listed in the channel selection file. I think on 40.5w c band, you will find some channels can be scanned that have a type not listed in the channel selection file. These channels can only be viewed under last scanned until a new scan is made. If you want to save these channels for viewing, then you need to add them to a Favourites Bouquet.