Loading in a geotiff with projection of EPSG:4326 isn't fully rendering:
The original in Tilemill:
When using gdalwarp to change the projection from EPSG:4326 to EPSG:3857, tilemill will then load the full geotiff, but the geotiff has a black strip down the center.
The warped in Tilemill:
The command used for gdalwarp is:
gdalwarp -overwrite -s_srs EPSG:4326 -t_srs EPSG:3857 -r lanczos -srcnodata 0 -dstnodata 0 -of GTiff original.tif warped.tif
The question is, either how do we get gdalwarp to work correctly, without the black strip, or how do we get the original to show up correctly in Tilemill.