Rendering - every sprite is a square

Hi, I have some issue… Iam creating a game for Android devices and tryied to reduce apk size and increase performance. And now I did something… wrong… And I don’t know where and how to fix it. So the problem is - editor showing that everything is ok… (first picture - circles(sprites)). But when Iam testint it on my android/pc - it shows squares (second picture). Sorry for my bad english.