The normal in game screen has two pixels on the right hand edge (central in height) that are broken. 

If you open your inventory screen they disappear. 

I have now added screen shots showing the issue.

One with normal in game screen showing two pixels at the right hand edge of the screen half way up that are not normal.

And one with the inventory screen up but the background the same and the issue disappears.

Apologies, this visual artefact was due to interaction with one of the resource packs I was using.