Mystery Strokes on the outside of UV Map elements

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1

Hello -

When I render an image, I’m getting purple strokes around the UV Map elements and don’t know where they are coming from. I attached a side by side to show the strokes. Any help would be appreciated. Thank you!

Purple-Lines
Purple-Lines2224×925 1.39 MB

2

The only thing I can think of is the possibility of issues with the drivers for your GPU (either through Eevee rendering or Cycles with CUDA, Optix, or HIP). It is well known for instance that Radeon cards are more likely to have bugs exclusive to them than GeForce.

3

That color reminds me of the missing texture color.
Is there faces you have not UV unwrapped or assigned?
Looks like a higher lever of subdivision during render is pulling mesh into view.

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5

Hey,

Seems to me there may be some problems with an UV mapping, you could try to turn on Auto Smooth in Normal setting to see if it’s help you:
image

6

Ok found out what was causing it. It had something to do with this stitching material layer. Every spot on the model where there is stitching, the purple bled through. There was 3 different Material layers that needed their surface color adjusted. Material Properties > Surface > Base Color

Stitching
Stitching1911×577 223 KB