Rendering became grey after I added an object, not a clipping problem, screenshot attached My animation rendered great until I added a blender object to it, it became grey and is showing the added object as a plane object. Camera clip end is set at 4000m so not the cause of the problem. Any idea please?
From informations you provided:


I don't think your render became grey because you added an object
Grey render in your screenshot is probably Viewport Render Image
(see Manual for more info)
Fact that your render is OK now, with this kind of rendering, is probably because you switched viewport draw mode from "Solid" to "Render", but it has nothing to do with regular camera rendering it is still only viewport render.





To get proper camera render use shortcut F12 (or use this function via top row menu Render > Render Image)