On this page you will find known issues and limitations that the development team is aware of, along with workarounds where applicable.



Interior mode

Banding can occur on still-images in Interior Mode, when rendered with Network Rendering.

Region mismatches (brighter/darker) can happen when using Interior Mode for Network Rendering, especially for lower resolutions.

Possible solution: Try to increase the resolution of the image.

Interior Mode does not support material samples.


Caustics have a different appearance in the Real-Time View and rendered output.

also mentioned on ?

The Real-Time View uses a slightly different approach from the Output window when rendering, this is especially apparent when dealing with caustics with Interior Mode.

Possible solution: Try to increase the amount of samples.

Volumetric Caustics are only supported in Interior Mode.

  also mentioned on also mentioned on Refractive Index and Scattering Medium

Volumetric Caustics are not rendered when Light Sources are contained inside a Scattering Medium volume.

also mentioned on also mentioned on Refractive Index and Scattering Medium

Render Passes

Passes with Interior Mode are missing Specular Reflections of Light Source materials.

Depth Pass has artifacts when rendering is stopped before finishing with Interior Mode.

Opacity textures produce noise in Clown render pass in Product Mode.

Opacity textures are not supported by Shadow render pass in Product Mode.

Opacity textures are not supported by Refraction render pass in Interior Mode.

Bump textures are not supported by Render passes in Product Mode.

Caustics cast onto the ground material will not Show up in the caustics pass.

Materials and Textures


EDU licenses cannot render multi-materials.


Opacity maps on cutaway caps are not supported

Also mentioned on Cutaway

Fade Animations are not supported with cutaway materials 

Also mentioned on Cutaway and Part Animations

Co-planar surfaces may produce artifacts with inherit/material caps

 Also mentioned on Cutaway

If you have two co-planar parts where one is excluded form the cutaway and you use inherit caps or material caps. Artefacts can occur on the surface of the excluded material.

Cutaway material may interfere with shadows on the environment ground

Also mentioned on Cutaway

If the cutaway object touches the environment ground it will cut that just as it cuts into regular parts.

Workaround: Add a groundplane (Edit > Add Geometry > Add Ground Plane) and exclude it from the cutaway.

When the Camera is inside the cutaway object, Color caps and Material caps are not working as intended

Also mentioned on Cutaway

When using material caps or color caps and the camera is positioned inside the the cutaway object, all objects in the scene will be displayed with the cap material/color.

Cutaway with inherit caps used on translucent materials may produce artefacts.

Also mentioned on Cutaway

Excluded objects in cutaway have incorrect reflections

 Also mentioned on Cutaway

Objects excluded by cutaway show reflections of the inside of the object being cut.

Bad shadows on excluded cutaway objects

 Also mentioned on Cutaway

The shadows on excluded objects appear as if the cut objects are still visible.

Fade Animation is not supported when viewing through a Cutaway object.

mentioned on Part Animations

Scattering Media and Cutaway materials in the same scene will sometimes lead to undesirable results.

  • If there is overlap between the cutaway and the Scattering Medium, and the Scattering Medium object is set to be excluded, the resulting image can have visual errors.
  • Cutaway material does not allow scattering medium to be seen through the cutaway material.

Geometry nodes

Some geometry may not show Flakes/Bubbles.

Some CAD formats i.e. .3dm, .c4d may be imported as several triangle groups and then merged making the body unfit for Flakes/Bubbles.

Workaround: Import with NURBS and Re-Tessellate.

Geometry nodes don't respect disabled state.


When applying Displacement to geometry with hard edges, these edges become split.

/wiki/spaces/FI/pages/457113715 also mentioned on Geometry Node Types

Hard model edges become split. Left cube is with hard edges, on the right the cube has a small fillet on the edges.

Workaround: Applying blends in CAD usually solves the issue.

Area Light

ZSpheres transferred from ZBrush are not supported for Area Light

 also mentioned on Geometry Node Types

Multi-Layer Optics

Multi-Layer Optics do not support nested dielectrics/liquid interfaces.


Scattering Medium

Overlapping objects with Scattering Medium may have shading issues.


Measured Material

Measured material shows black spots in bump cavities at grazing angles.


UV Mapped Textures

UV mapped textures applied to NURBS objects in Rhino are not mapped properly




Depth of Field

Rendering with High Depth of Field values, under Custom Control option, causes labels to be stretched and pixelated.

Workaround: Use the Maximum Time or Maximum Samples Rendering options.


Panoramic Camera behavior is significantly different when "Use GPU (enable effects)" is disabled in Preferences




Deleting animation associated to animation XR causes crash


Configurator / Presentation Mode / Viewer

Presentation mode/ KeyShot Viewer

In vertical layout, thumbnails may overflow to other panels e.g when the panels reappear after auto-hide. The overflow disappears when the panel is scrolled.


KeyShot Viewer's vertical layout places the "powered by KeyShot" mark in the vertical center of the scene.


Sometimes Multi-materials are shown even though they are a part of a Material Way.

Details: It usually happens the second time a scene with Material Ways are shown in Presentation mode, within the same KeyShot Session

Workaround: Restart KeyShot and open the scene again.


Configurator "UI Size" value input does not properly update UI size in Preview mode.




Color Picker

The color picker input is offset from the mouse pointer when High DPI is enabled





NX plugin always opens KeyShot 7 if installed.

Workaround: Uninstall KeyShot 7, Export using NX plugin, or save scene from KeyShot 7 and open in KeyShot 8.

NX plugin always opens new KeyShot session when clicking Update.

Workaround: Export .bip from plugin and use Import > Update Geometry.

NX plugin does not show progress dialog when sending to KeyShot 8.


Rhino plugin always opens new KeyShot session when clicking Update.

Workaround: Export .bip from plugin and use Import > Update Geometry.


On Windows: Installing KeyShot "for everyone" on windows Breaks the Alembic (.abc) importer.

Workaround: Install KeyShot "just for me".