I'm assuming either nobody has this issue (aside from my colleagues here at work), I'm not explaining it well enough, or I'm (we) doing something wrong. Attached is an image from a Corona material bump tab--I've put a layer in the texture field so I can stack bump maps and use the layer settings to control each map. This seemed to work fine in the latest beta and it also works fine in the Diffuse and Reflection tabs but for whatever reason i'm having no success in the bump tab--all procedurally created bumps are cancelled out (as mentioned before, images work as expected--it's only C4D's procedural noise shaders that refuse to work). Am I doing something wrong here? Is there another way to stack C4D's procedural noise textures that I'm unaware of? I'd be thrilled if this is something I've been doing wrong for all this time to only find out there's a better/easier/more common way.