I have two documents open in Photo, one that I copy from a source texture, then I have a workfile where I will manipulate things.
I get this really strange, either a setting somewhere, or a bug, but when I copy a selection from the reference into the workfile, the selection sometimes becomes blury and get these fussy edges, transparent like linear rendering, but the marquee tool isn't using anti aliasing and when I paste it I don't move the new layer around. This is completely random and it can be the same copy information, just copied to a different place in the canvas.
I figure it might be something with the pasting?
This image here, these two pastes here are done exactly the same, just a different area selected and so.