Unknown Guide Lines Appeared After Slicing
So, I created this picture and I want to upload it on instagram, so I slice it into 3 column with guide lines. But after I use Object-Slice-Create form Guides, the result is not as I expected, there are another line appeared. I dont know where these line came from. Can anyone help me to clear this unwanted lines?
This is the picture before I slice from guides..

And this is what happened after I use slice from guides..

As you see, there are some unwanted lines appeared after I slice from guide lines.
