Planar reflections occlusion culling doesn't seem to be working

Hello,

planar reflections occlusion culling doesn’t seem to be working. they use resources when they are in the camera field of view even if they are behind other objects, not visible or if they face at the opposite direction.

is this proper and planned behavior?

i make a reflecting cube for example with planar reflections attached to each side. when the cube is not visible or since only three faces can be visible in this example, shouldn’t planar reflections turn off automatically and free up system resources, exactly like they do behind the camera?

thank you.

nobody has info on that yet?