Cycles preview render better than actual (F12) render?

Hey all,

Not a major problem but annoying nonetheless.

I’ve duplicated a logo for a friend’s biz in Blender.

The curved background is fine in preview render but when I do the actual render (F12) the curved plane in the background has noticeable banding where the plane curves up.

I’ve attached a couple of photos showing the issue.
Render on left, Preview on right. Both approx same number of frames…about 60

FYI - AA is set to “Full Sample” if that matters.


Just a guess - see modifiers, if the render for background for Subdiv is allowed (photocamera icon). If you use any modifier…

You, sir, nailed it!

Thanks so much for the assist.