It could be the game is coming close to the particle/texture limit. Ive had similar problems, and its not just the Coronata that has the issue. Ive seen TEC starbases with no particles, or ships/structures with all of the textures not loaded properly. It will load the normal, and light map, but not the color map, or just the light map, or just the normal map. It is totally random when it occurs, but its usually around late game. When you have almost everything researched, and have a pretty good sized fleet, and empire. Game is using around 1.7 gigs when it happens.
