EEVEE Screen Space Reflection in the preview does not match the final render.
Viewport:
Final Render:
Notice that at the bottom in the final render the SSR is fading away compare to the viewport render.
According to Clément Foucault:
This is an artifact of the edge fading in the ScreenSpaceReflection properties. It fades based on distance from the viewport center. In the viewport the rendered region is bigger so it fades less on the center of the image.
You may need to reduce the fading or Iincrease the film > overscan to minimize artifacts.
Enabling the Overscan of 5% or more works well. In some cases reducing SSR fading maybe necessary if overscan does not fix it. Sample file SimpleStudioEEVEE.blend (1.7 MB)
See below:
