One thing I noticed today while in a comp-stomp session is that the Vasari Rebels cannot have more than one starbase active in a star's gravity well. When another starbase is moved in or built in the star the original starbase's weapons, strikecraft, and abilities are deactivated. They can still move and phase jump, but they have no offensive capability whatsoever.
I'm not sure if this is intentional due to the Vasari Rebel's starbases ability to phase jump or if it is a bug. If it is the latter then obviously it needs to be fixed, but if it is the former then I would think that at the very least the amount of active Vasari Rebel starbases in a star should be increased.