Started using a Sprite Atlas, now some sprites have other sprites in them.

For the first time I used a sprite atlas, but now some of my sprites have pieces of other sprites in them. How do I prevent that?

Before I used an atlas, there weren’t artifacts on the upper left/lower right of this picture.

OK I figured it out on my own. I used Mesh Type Full Rect instead of Mesh Type Tight. It is really, really hard to find thorough information about this dropdown BTW. I’ve been trying to figure out what it does ever since I started using unity, but I always gave up because it never mattered until now.