@Fotorama-Berlin You see the tour two times, because way back when you've originaly published the tour via Google Moderator, you've done an update. Google never deleted the old original tour, they've just map rejected the first tour so it's hidden from Maps. So now when you've imported the tour you got both versions.
If you go to Edit section and wait a bit, you will see that all the map rejected images will have a magenta trash can. Those will be the first map rejected images and you are safe to select them and to delete them from Google and from GoThru.
