[Suicide Junkie]

The details panel shows the planet name, no graphic, a Type of ' - ', an Atmosphere of 'NA', and normal values for Condition and Value. The rest of the panel is empty.

That's not a stormworld, its a null-planet!

I suffered from those when I tried to add a planetsize too...
I think others may have had more luck, but I still have no idea what's going on.

What I did for hidden planets, was to just make a system type where lots of storms are generated overtop of the planets and objects... some of the storms are cloaking storms, which leave the planet totally hidden until you bring in ships with scanners.