Bugs: Bump not showing, Geometry dissapears in Rendered

[encephalon]

recently i can not get anything going anymore, everything seems completely derailed, bump is showing in rendered mode but does not render in raytraced, geometry completely disappears when clicked on, or in this case the groundplane vanishes when i click on the sphere.

i have no file to share currently where the geometry disappears but maybe somebody has a clue? in the file attached the groundplane vanishes though in rendered mode

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rendered

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raytraced after ~300 cycles

[nathanletwory (Nathan 'jesterKing' Letwory)]

This is a known issue, and I cannot fix it in Rhino 8 with a good way. If I fix it for this case, then smaller objects will have way too strong bump.

For now when you use it in millimeter model with relatively large objects set advanced setting BumpStrengthFactor to say 1000.