Filter - Clipping/Curves ignored

[WorkFlow]

Hi all,

I was just making a new material when I ran into a problem I've never noticed before.

Am I missing something or is Corona somehow not really using what a filter-shader outputs?
I'm using a texture and applied a harsh clipping just to test this and the filter and the preview of the texture show the hard clipping - the IR though renders something very different.
Not the original texture either because that would be much brighter.
Texture is set up with linear color-profile.

Any pointers in the right direction would be much appreciated!

Thanks,
Flo

PS: texture not included, shouldn't make a difference, I tested multiple with the same result

Windows 10, C4D R21, Corona 6.0

[Beanzvision]

What about in the final render? Is it the same?

[WorkFlow]

What about in the final render? Is it the same?

Honestly I was so caught up in trying to find a mistake I made, that I never tried a final render! :D

But I just now did and unfortunately the result is the same...

[davetwo]

Works OK for me (although perhaps a little less extreme thn I would expect).
See grabs below

[davetwo]

forgot the 'before' grab