Hi,
not sure what the record might bring?
i press render, it prepares, then the Nan error comes up,
the scene is all white in render, sky black or visible(depends on scene)
no more is happening.
i use the visibility buttons in sky and hdri dome (hdri in sky obj)
edit:
here a screenshot, it should show all infos that can be seen visually:

error in c4d console is:
"2021/12/27 17:36:41 [Corona4D] An internal error has occurred causing your image to contain NaN (Not a Number) value.
Please report the bug with the scene attached. We can fix these problems promptly if we have the scene where it happens"somewhere here in the C4d forum i have read today that a v8 NaN bug is known with sky visibility settings? (regression bug that came back)