Shipbuilding Bug?

[jaylord]

I've only been playing SE4 for a week so maybe this isn't a bug, but... I was playing a low-tech start game and ran into the Jhaerlen (sp?) Imperium and they immediately declared war. I tried to ignore them for awhile but eventually I had to go swat them. I went to the master build list (the wrench icon thingie) and everywhere I saw a shipyard I built a CA. The thing is, when one of the ships finished I went directly to the planet where the ship was built and the build ships button was greyed out. Of course the planet had no shipyard, it was just a mining colony. But there was a shipyard at another planet in the system. When I looked at the master build list again for the planet without a shipyard, it still showed a shipyard sysmbol. I figured this was a bug and didn't build anymore ships at those planets (didn't need them since I squashed those nasty little lizards flat), but was it really a bug? I'm patched up to the original 1.27 patch and I'm waiting for word that the updated patch can be installed without uninstalling the game before I use it.