Sprite Atlas generating extruded opaque pixels in sprites

Hello!

I’m having a bit of an odd issue here! I’m finding that when I create a Sprite Atlas out of a folder of sprites, what should be transparent pixels are getting replaced with extruded opaque pixels from the sprite. You can see it here:

6075669--658965--extrudedpixels.png

These weird black lines are being added in where there should be transparency! Here’s the original sprites:

You can see how it’s happening with a single sprite here as well:

I’ve fiddled with every option imaginable and don’t seem to be able to figure out what’s going on here! Does anyone have any insight in to this, or is it an actual bug with the sprite atlas?

thats working as intended, when you use the sprites ingame they look good right?

It seems that it’s something in my sprite shader that is causing a bunch of artifacts that I’m seeing, which I’ve been incorrectly attributing to these extra pixels in the sprite atlas. Argh!