Remove a Material

On the platform, materials that are in use or have associated data cannot be removed easily by design. This prevents users from accidentally deleting work that may have taken days to create with a single click. Additionally, if a material or texture is already used in a scene, the system restricts its removal to avoid errors when the scene is opened later.

To remove a material, you need to ensure two things:

The material doesn't have any revisions (see Remove Material Revisions)
The material doesn't have any textures (see Remove Textures)

Remove Material Revisions

If you don't see any revisions under your material (and you only see a New Material button), then you can skip this step.

In order to remove the materail revisions, you would need to click on Show version history

And then on the bin icon to remove each revision:

If you see that a material revision cannot be removed, it means that it is currently referenced in a scene. At this point, removing the material becomes intentionally more restricted, because it has already been used in one or more scenes. If the material were removed, those scenes would produce an error every time they were opened. You can view the list of scenes where the material is used in the following section in the dialog window:

You would need to open each scene and manually remove the material. The system will not remove it automatically, since doing so could potentially damage the scene.

Remove Textures

If you don't see any textures under your material, you can skip this step.

Removing revisions is only one part of the process. You also need to explicitly remove the textures associated with the material under Texture Sets. Click on any of your textures: