I’m trying to reload some saved viewpoints in the viewer and I’m encountering an strange behavior when trying to load viewpoints created in ortho mode. Basically I do not get the correct zoom.

Below is the screenshot taken at the moment that I saved the viewpoint :
viewpoint screenshot

An then, when I load this viewpoint in the viewer I get this :
viewer after loading the viewpoint

So in this case, I get something with less zoom. If I zoom in, I get the correct view.
Everything works fine for viewpoints in perspectives cameras.

What I’m missing here ?