When i drop my texture in the world it's totally black but looks find in Myblueprint
The material isn't set up in a way that is suggested and I can't guarantee that you would get good results. Usually I would recommend using the MaskedUnlitSpriteMaterial found in the Paper2D Content Folder as it has the correct setup by default. Take a look at this graph and the settings and make sure your material is setup in a similar way. You can also right click your texture sample and convert to a parameter (Name it Source Texture).
If you are still having issues could you also post a screenshot of your sprite.
answered Dec 14 '16 at 08:37 PM
Follow this question
Once you sign in you will be able to subscribe for any updates here