[Arkcon]

I had noticed something similar to this. Basically, a while back, if you had CSM II and a planet has CSM I, you had an easy time glassing the planet -- your ships just stay out of range on strategic combat and pound it without counterattack.

I've noticed now you on tactical you can't target a planet with CSM II, unless you are well within range of CSM I.

I've got a feeling this is more of a feature than a bug, but hey, if it's not in the list of things fixed in a patch, then maybe MM doesn't know about it and would like to fix it.