Hi, I'm new to blender so I may have the workflow wrong but after watching a tutorial on 2D animation I decided to try it myself.

Anyway a friend thinks it might have been something to do with Premultiply but it shows with that option ticked or not.

Here i've taken screenshots: http://imgur.com/a/IdgZc

On different angles or zooms it disappears and reappears and it does show up in a render, any ideas how to get rid of it?

Thanks in advance

Bastos