'Bleeding' decals

[Glider]

I am adding some decals to models and have started to see a new problem (many decals done in the past and didn't come across this issue)

 

The decalling is straightforward, no unusual requests, just a PNG or Jpeg to apply to a model surface. During application, it goes as planned. In model mode, it looks fine, but when rendered, I see streaks of the decal color bleeding onto other sections where I did not apply the decal.

 

I'll try and upload an example.

 

 

Any tips as to where I'm causing this?

 

As usual, I appreciate all the help.

 

Glider

[KenH]

I'm getting that too. I think it's related to the alpha channel and how close you're to the decal (closer renders ok). Quick render is worse, but it still does it on render to file. v15e.