The Circular Solar Photovoltaic Cells have an issue where they are always blocked by themselves, except when in the middle of animating the extending or retracting.

Problem goes away if you set raycastTransformName = SunPivot in CircularSolarPhotovoltaicReceiver/CircularPanel.cfg. See pull request. I've tested in KSP 1.2 and see no obvious side effects.

Good find

I have tested all circular panels. They seems to work fine now. It seems that @davidson16807 fix was spot on. Suggest closing the issue?