I see, I'm not really an expert but what it usually work for me is changing the sprite properties from "bilinear" to "point", changing the max size to default, and/or trying different numbers within the "pixels per unit" section, other than that I couldn't tell what the issue is, if none of that works try using this alternative sprite sheet for the "full auto" mode, is a little more simple, I read somewhere that some times the size of the image may influence some things in unity but I'm not completely sure.
