[Smart Materials broken :( ?!]

I have the same issue. When I create smart material, preview is not showing- it looks like the material is transparent.  This is almost permanently present , but sometimes 3d coat shows material, and if i restart it than again the thumbnail is transparent.

[Weird colors appearing while texturing]

Like I already wrote- I tried with white- which is default off. There wasn't green color on the selection.  

[Weird colors appearing while texturing]

Hi, I've had this issue several times while texturing in different coat versions. Right now I'm using 4.9.37.

It usually happens when I'm several hours into texturing. 

When I start applying material I get some weird color that is not part of the material. That color is not selected in color pallete too. I've tried switching color pallete from white to black but the same green color would appear. It only happens when I apply light pressure on the model, but when I apply hard pressure or go over it several times I get the material. I've tested it with different materials - both imported and default ones too. Stencil is turned off. Brush is default round one.

Thank you for your help

 

[New alpha folder]

Hi, I've recently uploaded some alphas to 3d coat and I wanted to arrange them into folders. However whenever I create new folder I get 6 default brushes already in them and I can't delete them. Is there something I need to know about those brushes or is that a bug?

Visual :