Shader texture has all sprites

[UnPolloLoco]

This can make modifying sprites very hard, because the uv coordinates don't go from 0 to 1 and other textures can easily leak in.

Example

[slmjkdbtl]

What are you trying to accomplish? The batched textured is used for performance, it should be ok as long as the uv coordinates is correct (in the example it should be texture2D(tex, uv) if you intend to render the image)