Hi Antonio,

Yes, I was able to work with your data on Iber:


I changed the SRC of the orthofoto, shapefile and DTM. In this case I used EPSG:25829 - ETRS89 / UTM zone 29N. For the shapefile it is sufficient to export as by choosing the new SRC. For the raster you have to reproject and save as in the new SRC. As you can see, in QGis I have the same layers that I loaded in Iber and in the same coordinates (more or less):

You can also check the SRC of the layer in the properties of the layer.

This projection stuff is a bit of a mess. But as soon as you struggle a bit you get the hang of it.

Cheers,
Gonzalo García-Alén