I'm all back from vacation and I wanted to continue the discussion on my experience with the wires bug.

This is a simple shader where I've used wires to mix color, transparency, reflection, and bump.

I set this up intentionally where the original settings in the wires has not been touched in any way (this is using the standard defalt settings).

Then I went in and selected the little check box by the gray scale button.  I selected gray scale in the color and bump wires mixers and re-rendered.

Now the fun begins.

Let's say I didn't like this and I wanted to switch it back?  Oh well, no luck.

When you go back and uncheck the gray scale button, it doesn't switch back.  On top of that, if you you click on another part of the shader tree and go back to it, the box to select the option also vanishes.

And so ends my story of the infamous wires bug.

That bug is a cuttie in Carrara Pro 5.  Just wave the mouse over the blank area and the check item re-appears!  I drag a slider back and forth to get the gray scale to finally go away.

A lot of these little shader libraries are hard-coded and DAZ3D won't re-write them.  Probably considered legacy code now.

Thanks for the follow up Kix. I hadn't noticed that before since once I engage wires, I typically leave it. I'll see what I can shake loose at DAZ. 

If you click where the checkbox was supposed to be, it reappears.

On my system, it never disappears. However, clicking it again doesn't disengage the function.

Close the shader completely and go into another room.  Then come back to the texture room and open the shader.  It will be missing.  At least in my version.

In all cases, I can't get the shader to revert back to a non-gray scale condition.

I see.  I used the Wires blender just once in my Shader (for color).  The bug is probably worse if it is used in more than one channel.

 I'm guessing you already tried CTRL+Dragging a good Wires blender over a corrupted one?

I hadn't tried that but I'll see what happens. That's an interesting idea.