Problem with the "Corona Shared" shader & Rebus

[3dkobi]

Hi,
I'm trying to upload a scene to Rebus and i'm getting lots of "Corona Shared" shader errors.
The main issue is that I've never used this shader in any of my materials. I've checked all of them and I can't see it anywhere.
I also did the Edit -> Delete unused materials
Any Idea why is this happening or what else can I check ?

Kobi

[Beanzvision]

Hi, this error is because Rebus does not currently support the shared shader. It has been mentioned in other threads.
https://forum.corona-renderer.com/index.php?topic=31467.0

[3dkobi]

But I didn't use this shader in my scene

[TomG]

The shared shader is not one you choose to use manually - it is created behind the scenes if you connect any shader to more than two places, e.g. one bitmap connected to the Diffuse of two materials.