Orthophoto Export Custom EPSG | PROJ: Cannot Open htps://cdn.xxxxx Network Functionality Not Available


When I try to export the Orthophoto layer using GeoTIFF and Custom Projection of EPSG:27700 I get the below error.
PROJ: Cannot open https://cdn.proj.org/uk_os_OSTN15_NTv2_OSGBtoETRS.tif: Network functionality not available

I am however able to successfully export using the same custom EPSG if I use DSM or DTM export functionality.

Can someone please advise, my maps are in the UK and I need to import them in to another software package which requires EPSG:27700 as the internal “converter” doesn’t want to play ball when it converts them.

Any help is much appreciated.


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