With multiple Translucent Material sorted in 3-D space or via Transparency Sort Priority, if one of the materials uses refraction it will render on top of the others no matter position or sort priority.
*Quick Repro: Open attached Project*
RESULTS: The Refraction renders on top of the Front Sphere.
EXPECTED: The Refraction should not render on top.
Head over to the existing AnswerHub thread and let us know what's up.