I set up my display mode to rendered with a gradient as background.
It looks something like this:
Now when I want to print this viewport to an image file, the print dialogue shows the desired preview:
… but the actual image file alters the background including a strange kind of horizon line:
This happens in perspective viewports as well as in projections (here front view):
This is really annoying and severly limits the usefulness of the much improved Rhino8 rendered display mode as a quick and dirty, but still quite high quality vizualisation tool.
Or am I doing something wrong here?