Hillshade & relief offset from the map

[MoridinBG]

Thanks for creating this docker image, it simplifies setup A LOT!

But for me the resulting tile server has the relief and hillshade offset a few kilometers north east.
I went through all the configs, but can't find anything that could be the reason for this. I checked the scripts against https://github.com/der-stefan/OpenTopoMap/blob/master/mapnik/README.md, but again, nothing seems wrong.

Note the white band to the left. It's not snow (:

Contour lines seem to be at the right place, but the relief is offset.

This is the same location in opentopomap.org

Both the contour lines and the hillshade & reliefe are derived from the same SRTM data via http://viewfinderpanoramas.org/Coverage%20map%20viewfinderpanoramas_org3.htm

I first tried with the complete South America pbf and SRTM for full coverage, which took days, then again from scratch with just Uruguay and only the Uruguay SRTM files, being the smallest filesize and quickest to redo. Both times the same result.
Is this a misconfiguration of the map & server or an issue with rendering?

[krusty82]

I had the same problem.
Changing the projection in the 03_dem_hillshade.sh from
-t_srs "+proj=merc +ellps=sphere +R=6378137 +a=6378137 +units=m"
to
-t_srs epsg:3857
fixed it for me