On earlier versions of my project, the object remains only wireframe even if rendered view is selected, but in 4.3 (that I’m using right now), is also solid.
It changes back to normal if I put Viewport Shading view, the way it’s supposed to, for me at least.
Any way to make objects look just wireframe on rendered view?
Wireframe rendering only in viewport rendering; this feature has not been changed.
https://docs.blender.org/manual/en/latest/editors/3dview/viewport_render.html
To see it as a wire in a rendering, you must use the Wireframe modifier, or you must use a wire node in the Material Editor.
In this case, the mesh is marked with a triangle, so it is completely different from the image you showed me.