Importing TIF format (NO TIFF ( DTM) to OpenRail

Hi everyone,

I am trying to import a tif file to an ORD file. But the program categorically refuses to do so?

I tried with files that have defined and undefined coordinates, 2D and 3D but nothing seems to work.

Does anyone have any suggestions?

PS I try to do it through terrain tab.

Best regards,

Filipp Zarov