I got your tile and anything is clear now!
You save the tile enabling the "randomize texture" option:
this means ArchiTiles assumes you have into you library several images with very similar names.
As you can read in the user manual:
"You must have multiple images (textures) saved in an ArchiCAD active
library. They also must be saved with the same name except the last
digit which must have a different number (the first image name without
a number, then the second image with the same name and the number
2, the third image with the same name and the number 3, etc.). Here is
an example of how the different textures must be named in the
ArchiCAD library:
1st image: pink_marble
2nd image: pink_marble2
3rd image: pink_marble3
4th image: pink_marble4
5th image: pink_marble5"
In your case, you create a tile with the randomize texture option but you only load 1 image!!!
Friendly
Fabrizio
Fabrizio Diodati
Graphisoft Italy Srl | Via Rossignago 2/A Spinea Venezia 30038 Italy