Shadow behaviour when changing camera angle

Rhino Rhino for Windows
1

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Shadows disappear when i change the camera angle.
The is no clipping plane. I tried adding one but doesn’t change the issue.
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2

Please upload the 3dm file and include a link back to this forum topic in the comments.
https://www.rhino3d.com/upload

Additionally, please run the Rhino SystemInfo command and post the results here.

Thanks