2D unwanted outlines

The title says pretty much all - I have a 2D scene, and there is a sprite which shouldnt have any outline, but because of some reason, I can see a little white line going around.

Disableing anti aliasing didnt work. Any other advices ?

Thanks

 

Sorry I didnt reply earlier,
I didnt mess with those settings, so it should be set to default.

 

Sounds like a white background that is showing through semi-transparent pixels. A screenshot of the problem would help a topic like this in any case.

 

I'll be honest with you, I have no idea. I am kinda beginner in this stuff, pretty much never worked with graphics, textures ... Those images that I used were created in app ... sketch. Sorry if I cant help you.

This is a screenshot from built game:
https://i.imgur.com/jcKGMvo.png
the white outline is shown on for example the right platform. If I open the game in Unity, and move those platforms up or down, the white sometimes disappears.

 

Well, that is exactly what I thought it was. "I have no idea" kind of results in, sorry, we can't help you. The file format is important here.

 

Are you looking for the image format ?

 

Check "Alpha is Transparency" on your texture assets.

 

Since my sprites have a texture type of: Sprite (2D and UI), I dont have the "Alpha is Transparency" option available. Only option where it is available for me is the Cookie, and when I tried using it, it just changed all of my objects to white ... or better say, transparent objects.