incorrect behavior of reflection captures with translucent materials

Quote: Reflection captures create a cubemap thats size is determined by the radius of the capture. This cubemap is applied to that radius. The larger the radius the larger the cubemap will appear in the reflection.

Yes i know all this. But why this issue happens only to translucent material. If set to opaque reflections work fine. here i link some pictures with cubemap reflection capture asn opaque reflection material