Illustrator 2026 – 3D and Materials does not update when I change the object's Fill color

Hi,

I’m having a problem with the 3D and Materials effect in Adobe Illustrator.

I have an object with a 3D and Materials effect applied. When I change the object's Fill color, the Fill color changes correctly in the Appearance panel and in the Swatches panel, but the 3D rendered object remains the original color.

For example:

• Original Fill color: Red
• I change the Fill to Green
• Appearance panel shows Fill: Green
• Swatches panel shows Green
• However, the 3D rendered object remains Red

I have attached two screenshots showing the problem.

I have already tried:

• Changing the Fill color from the Swatches panel
• Changing the Fill directly from the Appearance panel
• Turning the 3D and Materials effect off and on again
• Reopening the 3D and Materials settings
• Checking the material/color settings

Nothing updates the rendered 3D color.

Is this a known bug in Illustrator 2026? Is there a way to force the 3D render to update according to the object's Fill color without removing and recreating the 3D effect?

This is particularly problematic because I use 3D extrusion for signage and dimensional lettering, where I frequently need to change the color while keeping the exact same 3D settings, depth, rotation, and perspective.

Any workaround or solution would be greatly appreciated.

Illustrator version: 2026
OS: macOS

Thank you.