I check to see if the tile was modified using a hex editor to see and it was. So saving it in the TMP editor dose not cause the problem or at lease what I can see. But it dose change some of the hex codes.> > > > After an extensive day of testing. To lone to type. It seems when I place the tunnel sides on the tunnel the problem aperies with the modified tunnels but not with an original tunnel that was renamed or just saved in the editor but not modified.
> > > Could you find the smallest modification that will cause the error to appear?
> > > Does replacing the image of just a single sub-tile cause it?
> > > Or only adding one?
> > Changing the image dose not affect it but changing tile type dose. Further more it only seems to happens when I change the tile in question.
> So if you start with a tile of the correct type and replace the image, you end up with a working version of the final tile, by avoiding the bug.
"Yes" But before you say why don't you do that because this will only work with two of the tunnels (road and dirt) the train tunnel and water tunnel needs soom/most of the rest of the tile types changed.