Corona Node Materials Hooks?

[BLADE]

I have replaced a lot of materials with new ones. The old materials are deleted and not in the scene anymore.
When I now render via TeamRender I got an error because of missing maps from the old materials, e.g.:

Asset Error
MetalAluminumScratched004_NRM16_4K_METALNESS.tif (Corona Node Materials Hooks)

How can I get rid of these unused "Corona Node Materials Hooks"?

[Beanzvision]

Hi, can you try opening the node editor, go to ''View'' and then try deleting unused mats/shaders from there?

[BLADE]

Thanks Beanzvision, I did delete unused shaders and materials before but the problem was still there.

I copied now everything in a new scene and the error is gone. Hope thats not the only solution ... :-)

Thanks again for your time!