I wouldn't doubt it. I think though that if my post above is true, it may have been due to the Super Dominator super ability since the ships it gets are right in the vicinity of their capital world. Either it was causing a bug/crash when you had changed worlds, or it wasn't putting the ships in the right spot... I'm really fuzzy and shooting from the hip here lol.
I'll dig through the journals a bit to see if I can find something. It may be whenever they changed the home worlds to have more population and such. Giving you a big benefit for the starting world now that you couldn't relocate your civ capital.
*edit*
DA 1.6 Patch Notes+ TWEAK: You are no longer permitted to change your capital to another world, and bonuses for the capital city have been increased.