2D-Sprite Bug?

Hey guys, I have a problem with 2d-Sprites :confused: Do you now how to fix or avoid this problem? You can see it on the screenshots

Screenshot: http://fs5.directupload.net/images/160527/vz6go953.png

Screenshot: http://fs5.directupload.net/images/160527/yk9okajl.png

If I look from another angular I can see the whole Arrow,but from another angular it seems like a part of the arrow is behind the wall :confused:

Try to set the order in layer property of the sprite renderer, maybe it helps.